Host cities:
| Athlete | Nation(s) | Sport(s) | Role(s) | Era | Notes | 
|---|---|---|---|---|---|
| David Söderberg |  FIN | ATH | Olympics | 2004—2016 | 0–0–1 2003 Daegu ATH bronze: hammer throw | 
| Patryk Sokół |  POL | CSP | YOG | 2010 | 0–0–1 2013 Kazan CAN bronze: C4 1000 m | 
| Denis Sokolov |  RUS | SHO | Olympics | 2012 | 1–0–1 2007 Bangkok SHO gold: 10 m air rifle team, bronze: 50 m rifle three positions team | 
| Nataliya Sokolova |  RUS  URS | ATH | Olympics | 1976 | 0–1–0 1977 Sofia ATH silver: 400 m | 
| Svetlana Sokolova |  RUS | ATH | Olympics | 2004 | 0–1–0 2001 Beijing ATH silver: heptathlon | 
| Yelena Sokolova |  RUS | ATH | Olympics | 2012 | 0–2–0 2007 Bangkok ATH silver: long jump; 2013 Kazan ATH silver: long jump | 
| Yelena Sokolova |  RUS | SWM | Olympics | 2008—2012 | 1–2–0 2013 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only), silver: 400 m freestyle and 4×200 m freestyle relay | 
| Oleksiy Sokyrskyi |  UKR | ATH | Olympics | 2012 | 0–0–1 2009 Beograd ATH bronze: hammer throw | 
| Mariana Solomon |  ROU | ATH | Olympics | 2004 | 0–0–1 2003 Daegu ATH bronze: triple jump | 
| Olga Solovova |  RUS  URS | VVO | Olympics | 1980 | 1–0–0 1977 Sofia VOL gold | 
| Silvia Sommaggio |  ITA | ATH | Olympics | 1996—2000 | 0–1–0 1995 Fukuoka ATH silver: 5000 m | 
| Lajos Somodi, Jr. |  HUN | FEN | Olympics | 1976 | 0–0–1 1973 Moskva FEN bronze: foil team | 
| Son Gap-Do |  KOR | WRE | Olympics | 1984 | 0–0–1 1981 București WRE bronze: freestyle light-flyweight -48 kg | 
| Son Hui-Jeong |  KOR | CRD | Olympics | 2008 | 0–2–0 2011 Shenzhen CYC silver: road race and road time trial team | 
| Son Hyeon-Mi |  KOR | JUD | Olympics | 1996 | 1–0–1 1995 Fukuoka JUD gold: team, bronze: open class | 
| Son Un-Hui |  PRK | GAR | Olympics | 2000 | 1–0–1 2001 Beijing GYM gold: horse vault, bronze: team | 
| Son Wan-Ho |  KOR | BDM | Olympics | 2012—2016 | 1–1–0 2015 Gwangju BDM gold: team, silver: singles | 
| Son Yeon-Jae |  KOR | GRY | Olympics | 2012—2016 | 3–3–0 2013 Kazan RGY silver: ball; 2015 Gwangju RGY gold: individual, ball, and hoop, silver: clubs and ribbon | 
| Wachara Sondee |  THA | ATH | Non-starter | 2008 | 1–0–0 2007 Bangkok ATH gold: 4×100 m relay | 
| Song Aimin |  CHN | ATH | Olympics | 2004—2008 | 0–1–0 2005 İzmir ATH silver: discus throw | 
| Song Donglun |  CHN | WPO | Olympics | 2012—2016 | 1–0–0 2011 Shenzhen WAP gold | 
| Song Jong-Hun |  KOR | FEN | YOG | 2010 | 1–0–1 2015 Gwangju FEN gold: sabre, bronze: sabre team | 
| Song Xiaoyun |  CHN | BKB | Olympics | 2004—2012 | 1–0–0 2003 Daegu BAS gold | 
| Rebecca Soni |  USA | SWM | Olympics | 2008—2012 | 0–2–0 2005 İzmir SWI silver: 100 m breaststroke and 200 m breaststroke | 
| Chanatip Sonkham |  THA | TKW | Olympics | 2012 | 1–0–1 2009 Beograd TKW bronze: flyweight -51 kg; 2015 Gwangju TKW gold: flyweight -49 kg | 
| Isamu Sonoda |  JPN | JUD | Olympics | 1976 | 1–0–0 1967 Tokyo JUD gold: lightweight -80 kg | 
| Sonu Kyong-Sun |  PRK | FBL | Olympics | 2008 | 1–0–0 2003 Daegu FTB gold | 
| Tom Sorensen |  USA | VVO | Olympics | 1996 | 0–1–0 1991 Sheffield VOL silver | 
| Yuliseny Soria |  CUB | BKB | Olympics | 2000 | 0–1–0 1997 Catania BAS silver | 
| Anișoara Sorohan-Minea |  ROU | ROW | Olympics | 1984—1988 | 1–0–0 1987 Zagreb ROW gold: quadruple sculls (competed as Anișoara Minea) | 
| Hanna Sorokina |  UKR | DIV | Olympics | 2000—2004 | 0–2–0 2001 Beijing DIV silver: synchronized springboard and team | 
| Soronzonboldyn Battsetseg |  MGL | WRE | Olympics | 2012—2020 | 1–0–0 2013 Kazan WRE gold: freestyle middleweight -63 kg | 
| Debbie Sosimenko |  AUS | ATH | Olympics | 2000—2004 | 0–0–1 1997 Catania ATH bronze: hammer throw | 
| Aleksandar Šoštar |  SRB  SCG  YUG | WPO | Olympics | 1988—2000 | 0–0–1 1987 Zagreb WAP bronze | 
| Kirill Sosunov |  RUS | ATH | Olympics | 2000—2004 | 1–0–0 1995 Fukuoka ATH gold: long jump | 
| Yuliya Sotnikova |  RUS | ATH | Olympics | 2000 | 1–0–0 1995 Fukuoka ATH gold: 4×400 m relay | 
| Sho Sotodate |  JPN | SWM | Olympics | 2012 | 0–1–0 2011 Shenzhen SWI silver: 4×200 m freestyle relay | 
| Javier Sotomayor |  CUB | ATH | Olympics | 1992—2000 | 1–0–0 1989 Duisburg ATH gold: high jump | 
| Koji Sotomura |  JPN | GAR | Olympics | 1984 | 1–0–0 1981 București GYM gold: parallel bars | 
| Pavel Soukup |  CZE | ATH | Olympics | 1996 | 0–0–1 1995 Fukuoka ATH bronze: 800 m | 
| Ndèye Fatou Soumah |  SEN | ATH | Olympics | 2012 | 0–0–1 2009 Beograd ATH bronze: 4×400 m relay | 
| Gérson de Souza |  BRA | ATH | Olympics | 1984—1988 | 0–0–2 1981 București ATH bronze: 400 m and 4×400 m relay | 
| Maurício Souza |  BRA | VVO | Olympics | 2016—2020 | 0–0–1 2011 Shenzhen VOL bronze | 
| Sadia Sowunmi |  NGR | ATH | Non-starter | 1988 | 0–0–2 1985 Kobe ATH bronze: 400 m; 1987 Zagreb ATH bronze: 4×400 m relay | 
| Ivan Sozonov |  ROC  RUS | BDM | Olympics | 2012—2020 | 0–1–0 2013 Kazan BDM silver: doubles | 
| Pierpaolo Spangaro |  ITA | SWM | Olympics | 1960—1964 | 0–0–1 1963 Porto Alegre SWI bronze: 4×100 m freestyle relay | 
| Ivana Španović |  SRB | ATH | Olympics | 2008—2020 | 1–0–0 2009 Beograd ATH gold: long jump | 
| Anna Rita Sparaciari |  ITA | FEN | Olympics | 1980 | 2–0–0 1985 Kobe FEN gold: foil team; 1987 Zagreb FEN gold: foil team | 
| Doru Spînu |  ROU | WPO | Olympics | 1976—1980 | 0–0–1 1981 București WAP bronze | 
| Aleksey Spiridonov |  RUS  URS | ATH | Olympics | 1976 | 1–1–0 1973 Moskva ATH silver: hammer throw; 1975 Roma ATH gold: hammer throw | 
| Darya Spiridonova |  RUS | GAR | Olympics | 2016 | 2–0–0 2017 Taipei GYM gold: uneven bars and team | 
| Hope Spivey |  USA | GAR | Olympics | 1988 | 0–1–1 1993 Buffalo GYM silver: team, bronze: horse vault (competed as Hope Sheeley) | 
| Olga Šplíchalová |  CZE  TCH | SWM | Olympics | 1992—1996 | 0–0–1 1997 Catania SWI bronze: 1500 m freestyle (competed for the Czech Republic) | 
| Barbora Špotáková |  CZE | ATH | Olympics / Other | 2004—2020 | 1–0–0 2005 İzmir ATH gold: javelin throw | 
| Sukanya Srisurat |  THA | WLF | Olympics | 2016 | 0–1–0 2017 Taipei WLT silver: lightweight -58 kg | 
| Alina Stadnik |  UKR | WRE | Olympics | 2016 | 0–0–1 2013 Kazan WRE bronze: freestyle light-heavyweight -67 kg | 
| Ecaterina Stahl-Iencic |  ROU | FEN | Olympics | 1964—1980 | 1–3–0 1965 Budapest FEN silver: foil team (competed as Ecaterina Stahl); 1970 Torino FEN silver: foil and foil team (competed as Ecaterina Stahl); 1973 Moskva FEN gold: foil team (competed as Ecaterina Stahl) | 
| Reijo Ståhlberg |  FIN | ATH | Olympics | 1976—1980 | 0–1–0 1979 Ciudad de México ATH silver: shot put | 
| Dawn Staley |  USA | BKB | Olympics / Coach / Other | 1996—2020 | 1–0–0 1991 Sheffield BAS gold | 
| Esther Stam |  GEO | JUD | Olympics | 2016 | 1–0–0 2011 Shenzhen JUD gold: half-middleweight -63 kg (competed for the Netherlands) | 
| Vanya Stambolova |  BUL | ATH | Olympics | 2012 | 1–0–0 2009 Beograd ATH gold: 400 m hurdles | 
| Galina Stancheva |  BUL | VVO | Non-starter | 1980 | 0–0–1 1970 Torino VOL bronze | 
| Anișoara Stanciu-Cușmir |  ROU | ATH | Olympics | 1984 | 1–1–0 1981 București ATH silver: long jump; 1983 Edmonton ATH gold: long jump | 
| Przemysław Stańczyk |  POL | SWM | Olympics | 2004—2008 | 3–0–1 2005 İzmir SWI gold: 800 m freestyle; 2009 Beograd SWI gold: 400 m freestyle and 1500 m freestyle, bronze: 800 m freestyle | 
| Tomasz Stańczyk |  POL | SAL | Olympics | 2000—2004 | 1–0–0 1999 Palma de Mallorca SAI gold: 470 men | 
| Franklin Standard |  CUB | BKB | Olympics | 1968—1972 | 0–0–1 1970 Torino BAS bronze | 
| Božidar Stanišić |  MNE  YUG | WPO | Olympics | 1960—1964 | 1–0–0 1959 Torino WAP gold | 
| Melitina Staniuta |  BLR | GRY | Olympics | 2012—2016 | 1–2–2 2013 Kazan RGY silver: hoop; 2015 Gwangju RGY gold: ribbon, silver: clubs, bronze: individual and hoop | 
| Vasily Stankovich |  URS  UKR | FEN | Olympics | 1968—1976 | 3–1–0 1970 Torino FEN gold: foil team, silver: foil; 1973 Moskva FEN gold: foil and foil team | 
| Matt Stanley |  NZL | SWM | Olympics / YOG | 2010—2016 | 0–0–1 2011 Shenzhen SWI bronze: 4×100 m medley relay | 
| Krystsina Staraselets |  BLR | ROW | YOG | 2014 | 0–0–1 2015 Gwangju ROW bronze: coxless pairs | 
| Dmitry Starodubtsev |  RUS | ATH | Olympics | 2008—2012 | 0–0–1 2007 Bangkok ATH bronze: pole vault | 
| Agnieszka Staroń-Nagay |  POL | SHO | Olympics | 2004—2016 | 0–0–1 2007 Bangkok SHO bronze: 50 m rifle three positions | 
| Milica Starović-Novaković |  SRB | CSP | Olympics | 2016—2020 | 0–0–1 2013 Kazan CAN bronze: K1 500 m | 
| Sanja Starović |  SRB | VVO | Olympics | 2012 | 0–1–0 2007 Bangkok VOL silver | 
| Marcin Starzak |  POL | ATH | Olympics | 2008 | 0–0–1 2009 Beograd ATH bronze: long jump | 
| Jiří Šťastný |  CZE  TCH | BKB | Olympics | 1960 | 0–0–1 1961 Sofia BAS bronze | 
| Anzhela Stasyulevich |  BLR  URS | DIV | Olympics | 1988 | 0–1–0 1987 Zagreb DIV silver: platform | 
| Boris Stavrev |  BUL | FEN | Olympics | 1960—1972 | 0–0–1 1961 Sofia FEN bronze: sabre team | 
| Jim Steacy |  CAN | ATH | Olympics | 2008—2012 | 0–1–0 2009 Beograd ATH silver: hammer throw | 
| Dick Steane |  GBR | ATH | Olympics | 1968 | 1–1–0 1963 Porto Alegre ATH gold: 4×400 m relay, silver: 200 m | 
| Renate Stecher |  GDR | ATH | Olympics / Other | 1972—1976 | 2–0–0 1970 Torino ATH gold: 100 m and 200 m (competed as Renate Meißner) | 
| Katy Steding |  USA | BKB | Olympics | 1996 | 1–0–0 1991 Sheffield BAS gold | 
| Darrin Steele |  USA | BOB | Olympics | 1998—2002 | 0–0–1 1993 Buffalo ATH bronze: decathlon | 
| Dave Steen |  CAN | ATH | Olympics | 1984—1988 | 1–0–0 1983 Edmonton ATH gold: decathlon | 
| Claudia Ștef |  ROU | ATH | Olympics | 2012—2016 | 1–0–0 1999 Palma de Mallorca ATH gold: 10 km (competed as Claudia Iovan) | 
| Gheorghiță Ștefan |  ROU | WRE | Olympics | 2008 | 1–0–0 2013 Kazan WRE gold: freestyle light-heavyweight -84 kg | 
| Gertrúd Stefanek |  HUN | FEN | Olympics | 1980—1992 | 0–0–1 1981 București FEN bronze: foil team | 
| Mircea Ștefănescu |  ROU | WPO | Olympics | 1960—1964 | 0–0–1 1965 Budapest WAP bronze | 
| Aikaterini Stefanidi |  GRE | ATH | Olympics / Other | 2012—2020 | 0–0–1 2011 Shenzhen ATH bronze: pole vault | 
| Milutin Stefanović |  SRB | SHO | Olympics | 2016—2020 | 0–0–1 2013 Kazan SHO bronze: 50 m rifle three positions team | 
| Kelly Stefanyshyn |  CAN | SWM | Olympics | 2000 | 0–0–1 2007 Bangkok SWI bronze: 4×100 m medley relay | 
| Benjamin Steffen |  SUI | FEN | Olympics | 2016—2020 | 2–1–1 2001 Beijing FEN bronze: épée team; 2003 Daegu FEN silver: épée; 2009 Beograd FEN gold: épée and épée team | 
| Britta Steffen |  GER | SWM | Olympics | 2000—2012 | 2–0–1 2007 Bangkok SWI gold: 50 m freestyle and 100 m freestyle, bronze: 4×100 m freestyle relay | 
| Pavlína Štefková |  TCH  SVK | VVO | Olympics | 1968 | 0–0–1 1965 Budapest VOL bronze | 
| Marc-Konstantin Steifensand |  GER | FEN | Olympics | 2000 | 1–0–1 1989 Duisburg FEN bronze: épée team (competed for West Germany); 1991 Sheffield FEN gold: épée team | 
| Mona Steigauf |  GER | ATH | Olympics | 1996 | 1–1–0 1995 Fukuoka ATH silver: heptathlon; 1997 Catania ATH gold: heptathlon | 
| Felix Steiger |  SUI | SAL | Olympics | 2008 | 0–0–1 2005 İzmir SAI bronze: 470 men | 
| Boris Steimetz |  FRA | SWM | Olympics | 2008 | 0–1–2 2009 Beograd SWI silver: 50 m freestyle, bronze: 4×100 m freestyle relay and 4×100 m medley relay | 
| Klaus Steinbach |  GER  FRG | SWM | Olympics / Administrator | 1972—2006 | 0–0–1 1977 Sofia SWI bronze: 100 m freestyle | 
| Jördis Steinegger |  AUT | SWM | Olympics | 2008—2016 | 0–0–2 2007 Bangkok SWI bronze: 400 m freestyle; 2011 Shenzhen SWI bronze: 400 m medley | 
| Michel Steininger |  SUI | FEN | Olympics | 1960—1968 | 0–2–0 1959 Torino FEN silver: épée; 1963 Porto Alegre FEN silver: épée | 
| Dieter Steinmann |  FRG | ATH | Olympics | 1976 | 0–0–1 1975 Roma ATH bronze: 4×100 m relay | 
| Ádám Steinmetz |  HUN | WPO | Olympics | 2004—2012 | 1–0–2 1999 Palma de Mallorca WAP bronze; 2001 Beijing WAP bronze; 2003 Daegu WAP gold | 
| Barnabás Steinmetz |  HUN | WPO | Olympics | 2000—2004 | 0–1–0 1995 Fukuoka WAP silver | 
| Nenad Stekić |  SRB  YUG | ATH | Olympics | 1976—1984 | 1–1–0 1975 Roma ATH silver: long jump; 1977 Sofia ATH gold: long jump | 
| Andrzej Stelmach |  POL | VVO | Olympics | 1996—2004 | 0–1–0 1993 Buffalo VOL silver | 
| Krzysztof Stelmach |  POL | VVO | Olympics | 1996 | 0–1–0 1993 Buffalo VOL silver | 
| Dar'ia Stepaniuk |  UKR | SWM | Olympics | 2008—2016 | 0–2–0 2011 Shenzhen SWI silver: 50 m freestyle and 100 m freestyle | 
| Inna Stepanova |  RUS | ARC | Olympics | 2012—2016 | 0–0–2 2015 Gwangju ARC bronze: recurve team and recurve mixed team | 
| Oleq Stepko |  AZE  UKR | GAR | Olympics / YOG | 2010—2016 | 0–1–1 2013 Kazan GYM silver: team, bronze: pommelled horse (competed as Oleh Stepko for Ukraine) | 
| Mieke Sterk |  NED | ATH | Olympics | 1968 | 0–0–1 1970 Torino ATH bronze: pentathlon | 
| Jill Sterkel |  USA | SWM | Olympics | 1976—1988 | 5–0–0 1981 București SWI gold: 100 m freestyle, 200 m freestyle, 100 m butterfly, 4×100 m freestyle relay, and 4×100 m medley relay | 
| Mark Stevens |  GBR | SWM | Olympics | 1996—2000 | 0–0–1 1995 Fukuoka SWI bronze: 4×100 m freestyle relay | 
| Patrick Stevens |  BEL | ATH | Olympics | 1988—1996 | 0–0–2 1991 Sheffield ATH bronze: 200 m and 4×100 m relay | 
| Rochelle Stevens |  USA | ATH | Olympics | 1992—1996 | 1–0–0 1987 Zagreb ATH gold: 4×400 m relay | 
| Alex Stieda |  CAN | CTR | Olympics | 1984 | 0–0–1 1983 Edmonton CYC bronze: 4000 m individual pursuit | 
| Vladimir Štimac |  SRB | BKB | Olympics | 2016 | 1–0–0 2011 Shenzhen BAS gold | 
| Valcho Stoev |  BUL | ATH | Olympics | 1980 | 1–0–1 1975 Roma ATH bronze: shot put; 1977 Sofia ATH gold: shot put | 
| Daniel Stoian |  ROU | CSP | Olympics | 1988—1996 | 1–1–0 1987 Zagreb CAN gold: K2 500 m, silver: K2 1000 m | 
| Monica Stoian |  ROU | ATH | Olympics | 2008 | 0–1–0 2007 Bangkok ATH silver: javelin throw | 
| Nicu Stoian |  ROU | VVO | Olympics | 1980 | 1–0–0 1981 București VOL gold | 
| Eufemija Štorga |  SLO | ATH | Olympics | 2000 | 0–1–0 1999 Palma de Mallorca ATH silver: javelin throw | 
| Boryana Stoyanova |  BUL | GAR | Olympics | 1988 | 0–0–1 1965 Budapest GYM bronze: team | 
| Elena Stoyanova |  BUL | ATH | Olympics | 1972—1980 | 2–1–0 1973 Moskva ATH silver: shot put; 1975 Roma ATH gold: shot put; 1977 Sofia ATH gold: shot put | 
| Vyacheslav Strakhov |  RUS  URS | DIV | Olympics | 1972—1976 | 1–0–0 1973 Moskva DIV gold: 3 m springboard | 
| Mona-Lisa Strandvall-Pursiainen |  FIN | ATH | Olympics | 1972—1976 | 2–2–0 1973 Moskva ATH gold: 100 m and 200 m (competed as Mona-Lisa Pursiainen); 1975 Roma ATH silver: 100 m and 200 m (competed as Mona-Lisa Pursiainen) | 
| Danuta Straszyńska |  POL | ATH | Olympics | 1968—1972 | 1–1–0 1965 Budapest ATH gold: 80 m hurdles, silver: 4×100 m relay | 
| Kareem Streete-Thompson |  CAY | ATH | Olympics / Other | 1992—2004 | 1–0–0 1993 Buffalo ATH gold: long jump (competed for the United States) | 
| Andy Strenk |  USA | SWM | Olympics | 1968 | 3–1–0 1967 Tokyo SWI silver: 1500 m freestyle; 1970 Torino SWI gold: 400 m freestyle, 1500 m freestyle, and 4×200 m freestyle relay | 
| Ivan Stretovich |  RUS | GAR | Olympics | 2016 | 0–2–2 2017 Taipei GYM silver: all-around and parallel bars, bronze: horizontal bar and team | 
| Luisa Striani |  ITA | SWM | Olympics | 2000 | 0–3–1 1997 Catania SWI silver: 4×100 m freestyle relay, bronze: 4×200 m freestyle relay; 1999 Palma de Mallorca SWI silver: 4×100 m freestyle relay and 4×200 m freestyle relay | 
| Ellen Strophal-Streidt |  GDR | ATH | Olympics / Non-starter | 1972—1980 | 0–0–3 1973 Moskva ATH bronze: 100 m, 200 m, and 4×100 m relay (competed as Ellen Strophal) | 
| Bärbel Struppert |  GDR | ATH | Olympics | 1972 | 0–0–1 1973 Moskva ATH bronze: 4×100 m relay | 
| Marius Strzalka |  GER  POL | FEN | Olympics | 1980—1996 | 0–1–0 1983 Edmonton FEN silver: épée team (competed as Mariusz Strzalka for Poland) | 
| Louise Stuart |  GBR | ATH | Olympics | 1988 | 0–1–0 1991 Sheffield ATH silver: 4×100 m relay | 
| Marian Stuart |  CAN | SWM | Olympics | 1972 | 1–0–0 1977 Sofia SWI gold: 100 m breaststroke | 
| Dörte Stüdemann |  GDR | VVO | Olympics | 1988 | 0–0–1 1987 Zagreb VOL bronze | 
| Klavdiya Studennikova |  URS  UKR | SWM | Olympics | 1976 | 1–1–0 1977 Sofia SWI gold: 100 m backstroke, silver: 4×100 m medley relay | 
| Judit Stugner |  HUN | ATH | Olympics | 1964—1968 | 0–1–0 1965 Budapest ATH silver: discus throw | 
| Dmitry Stukalov |  RUS  URS | ATH | Olympics | 1976 | 1–0–1 1970 Torino ATH bronze: 400 m hurdles; 1973 Moskva ATH gold: 400 m hurdles | 
| Mike Stulce |  USA | ATH | Olympics | 1992 | 0–1–0 1989 Duisburg ATH silver: shot put | 
| Khrystyna Stuy |  UKR | ATH | Olympics / Non-starter | 2008—2016 | 1–1–0 2011 Shenzhen ATH gold: 4×100 m relay, silver: 100 m | 
| Yury Styopkin |  RUS | JUD | Olympics | 2000 | 1–0–1 1995 Fukuoka JUD gold: half-heavyweight -95 kg; 1999 Palma de Mallorca JUD bronze: half-heavyweight -100 kg | 
| Su Bingtian |  CHN | ATH | Olympics | 2012—2020 | 0–0–1 2011 Shenzhen ATH bronze: 100 m | 
| Su Li-Wen |  TPE | TKW | Olympics | 2008 | 1–0–0 2007 Bangkok TKW gold: lightweight -63 kg | 
| Su Wanwen |  CHN | FEN | Olympics | 2008 | 1–0–0 2003 Daegu FEN gold: foil team | 
| Su Yiping |  CHN | ATH | Olympics | 2004 | 1–0–0 2001 Beijing ATH gold: 100 m hurdles | 
| Su Yuling |  CHN | SHO | Olympics | 2012 | 0–0–2 2013 Kazan SHO bronze: 10 m air pistol and 25 m sporting pistol team | 
| Casimiro Suárez |  CUB | GAR | Olympics | 1980 | 1–0–0 1985 Kobe GYM gold: horse vault | 
| Giovanni Suarez |  ITA | ROW | Olympics | 1984—1992 | 1–1–0 1987 Zagreb ROW silver: coxed fours; 1989 Duisburg ROW gold: eights | 
| Succar |  BRA | BKB | Olympics | 1960—1968 | 1–0–0 1963 Porto Alegre BAS gold | 
| Ida Such |  HUN | ATH | Olympics | 1964 | 0–0–1 1965 Budapest ATH bronze: 4×100 m relay | 
| François Suchanecki |  SUI | FEN | Olympics / Non-starter | 1972—1988 | 0–0–1 1977 Sofia FEN bronze: épée | 
| Ioan Suciu |  ROU | GAR | Olympics | 2000—2004 | 2–2–1 1997 Catania GYM gold: pommelled horse, silver: floor and horse vault, bronze: team; 2001 Beijing GYM gold: pommelled horse | 
| Taimara Suero |  CUB | BKB | Olympics | 2000 | 0–1–0 1997 Catania BAS silver | 
| Risa Sugawara |  JPN | GAR | Olympics | 1996 | 2–1–2 1997 Catania GYM gold: floor and balance beam, silver: uneven bars, bronze: all-around and team | 
| Tommy Sugiarto |  INA | BDM | Olympics | 2016 | 0–0–1 2007 Bangkok BDM bronze: team | 
| Aiko Sugihara |  JPN | GAR | Olympics | 2016—2020 | 1–1–0 2019 Napoli GYM gold: team, silver: floor | 
| Mika Sugimoto |  JPN | JUD | Olympics | 2012 | 2–1–1 2003 Daegu JUD gold: team, silver: open class; 2007 Bangkok JUD gold: team, bronze: heavyweight +78 kg | 
| Tatsuo Sugimoto |  JPN | ATH | Olympics | 1992 | 0–1–0 1993 Buffalo ATH silver: 4×100 m relay | 
| Kuniyoshi Sugioka |  JPN | ATH | Olympics | 1960—1972 | 0–0–1 1965 Budapest ATH bronze: high jump | 
| Akemi Sugiyama |  JPN | VVO | Olympics | 1988 | 1–0–0 1985 Kobe VOL gold | 
| Ari Suhonen |  FIN | ATH | Olympics | 1988 | 1–0–0 1989 Duisburg ATH gold: 800 m | 
| Sui Feifei |  CHN | BKB | Olympics | 2004—2008 | 1–1–0 2001 Beijing BAS silver; 2003 Daegu BAS gold | 
| Slavica Šuka |  BIH  YUG | BKB | Olympics | 1984 | 0–0–2 1983 Edmonton BAS bronze; 1985 Kobe BAS bronze | 
| Olga Sukharnova |  RUS  URS | BKB | Olympics | 1976—1980 | 3–0–0 1973 Moskva BAS gold; 1977 Sofia BAS gold; 1981 București BAS gold | 
| Aleksandr Sukhorukov |  RUS | SWM | Olympics | 2008—2016 | 2–0–0 2013 Kazan SWI gold: 4×100 m freestyle relay (swam in heats only) and 4×200 m freestyle relay | 
| Jevgenijus Šuklinas |  LTU | CSP | Olympics / Other | 2012 | 2–0–0 2013 Kazan CAN gold: C1 200 m and C1 500 m | 
| Teresa Sukniewicz |  POL | ATH | Olympics | 1968 | 1–0–0 1970 Torino ATH gold: 100 m hurdles | 
| Irina Sumnikova |  RUS  URS  EUN | BKB | Olympics | 1988—2000 | 0–1–0 1987 Zagreb BAS silver (competed for the Soviet Union) | 
| Sarat Sumpradit |  THA | WLF | Olympics | 2016 | 0–0–1 2017 Taipei WLT bronze: middle-heavyweight -94 kg | 
| Sun Fuming |  CHN | JUD | Olympics | 1996—2004 | 0–0–1 1995 Fukuoka JUD bronze: open class | 
| Sun Hongyun |  CHN | FEN | Olympics | 1988 | 0–0–1 1989 Duisburg FEN bronze: foil team | 
| Sun Huizi |  CHN | WPO | Olympics | 2008—2012 | 1–0–0 2009 Beograd WAP gold | 
| Sun Jun |  CHN | BKB | Olympics | 1992—2000 | 0–0–1 1993 Buffalo BAS bronze | 
| Sun Qingmei |  CHN | FBL | Olympics | 1996 | 1–0–0 1993 Buffalo FTB gold | 
| Sun Wen |  CHN | FBL | Olympics | 1996—2000 | 1–0–0 1993 Buffalo FTB gold | 
| Sun Yating |  CHN | WPO | Olympics | 2008—2016 | 2–0–0 2009 Beograd WAP gold; 2011 Shenzhen WAP gold | 
| Sun Ye |  CHN | SWM | Olympics | 2008—2012 | 3–0–0 2011 Shenzhen SWI gold: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay | 
| Sun Yiwen |  CHN | FEN | Olympics | 2016—2020 | 0–1–0 2013 Kazan FEN silver: épée | 
| Sun Yujun |  CHN | WPO | Olympics | 2008—2012 | 2–0–0 2009 Beograd WAP gold; 2011 Shenzhen WAP gold | 
| Ivan Sunara |  CRO  YUG | BKB | Olympics | 1984 | 0–1–0 1983 Edmonton BAS silver | 
| Zoltán Supola |  HUN | GAR | Olympics | 1992—2000 | 1–0–0 1995 Fukuoka GYM gold: pommelled horse | 
| Andrzej Supron |  POL | WRE | Olympics | 1972—1980 | 0–0–1 1977 Sofia WRE bronze: Greco-Roman lightweight -68 kg | 
| Tina Šutej |  SLO | ATH | Olympics | 2012—2020 | 0–1–0 2011 Shenzhen ATH silver: pole vault | 
| Ussadate Sutthikunkarn |  THA | TKW | Olympics | 2004 | 0–1–0 2007 Bangkok TKW silver: flyweight -58 kg | 
| Nataliya Sutyagina |  RUS | SWM | Olympics | 2000—2008 | 0–1–1 2001 Beijing SWI silver: 100 m butterfly, bronze: 4×100 m medley relay | 
| Sompote Suwannarangsri |  THA | ATH | Olympics | 2008 | 1–0–0 2007 Bangkok ATH gold: 4×100 m relay | 
| Sittichai Suwonprateep |  THA | ATH | Olympics | 2000—2008 | 1–0–0 2007 Bangkok ATH gold: 4×100 m relay | 
| Ayuko Suzuki |  JPN | ATH | Olympics | 2016—2020 | 1–1–0 2013 Kazan ATH gold: 10000 m, silver: 5000 m | 
| Daichi Suzuki |  JPN | SWM | Olympics | 1984—1988 | 2–1–0 1987 Zagreb SWI gold: 100 m backstroke and 200 m backstroke, silver: 4×100 m medley relay | 
| Hisatsugu Suzuki |  JPN | ATH | Olympics | 1992 | 0–1–0 1993 Buffalo ATH silver: 4×100 m relay | 
| Keiji Suzuki |  JPN | JUD | Olympics | 2004—2008 | 1–0–0 2001 Beijing JUD gold: half-heavyweight -100 kg | 
| Satomi Suzuki |  JPN | SWM | Olympics | 2012—2016 | 0–0–3 2011 Shenzhen SWI bronze: 100 m breaststroke, 200 m breaststroke, and 4×100 m medley relay | 
| Rostyslav Svanidze |  UKR | SWM | Olympics | 1996—2000 | 1–1–0 1991 Sheffield SWI gold: 4×200 m freestyle relay (competed for the Soviet Union); 1999 Palma de Mallorca SWI silver: 4×200 m freestyle relay | 
| Nereo Svara |  ITA | ATH | Olympics | 1960 | 0–1–0 1959 Torino ATH silver: 110 m hurdles | 
| Konstantin Svechkar |  RUS | ATH | Non-starter | 2008 | 0–0–1 2005 İzmir ATH bronze: 4×400 m relay | 
| Valery Sviatokha |  BLR | ATH | Olympics | 2008—2012 | 0–0–1 2005 İzmir ATH bronze: hammer throw | 
| Sergey Sviridov |  RUS | ATH | Olympics | 2012 | 0–1–0 2013 Kazan ATH silver: decathlon |