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Olympians Who Won a Medal at the Summer Pan American Games (8551)

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Host cities:

Athlete Nation(s) Sport(s) Role(s) Era Notes
Neville Myton JAM ATH Olympics 1964—1968 0–0–1 1967 Winnipeg ATH bronze: 4×400 m relay
Shayna Nackoney CAN SWA Olympics 2004 0–1–0 2003 Santo Domingo SYN silver: group
Flávia Nadalutti BRA SWM Olympics 1976 0–0–1 1975 Ciudad de México SWI bronze: 4×100 m medley relay
Nádia BRA BKB Olympics 1992 1–1–0 1987 Indianapolis BAS silver; 1991 La Habana BAS gold
Alyssa Naeher USA FBL Olympics / Non-starter 2016—2024 0–1–0 2007 Rio de Janeiro FTB silver
George Nagy CAN SWM Olympics 1976 0–1–0 1979 San Juan SWI silver: 200 m butterfly
Thalita Nakadomari BRA GRY Olympics 2000 3–0–0 2003 Santo Domingo RGY gold: group, group ribbon, and group hoop & ball
David Nalbandian ARG TEN Olympics / Non-starter 2004—2012 0–0–1 1999 Winnipeg TEN bronze: singles
Nalbert BRA VVO Olympics 1996—2004 0–1–1 1999 Winnipeg VOL silver; 2003 Santo Domingo VOL bronze
Anita Nall USA SWM Olympics 1992 0–0–1 1995 Mar del Plata SWI bronze: 200 m breaststroke
Eric Namesnik USA SWM Olympics 1992—1996 0–2–1 1995 Mar del Plata SWI silver: 200 m breaststroke and 400 m medley, bronze: 200 m medley
Walter Naneder ARG ROW Olympics 2004 1–0–0 2003 Santo Domingo ROW gold: coxless pairs
Édgar Nanne GUA ROW Olympics 1980—1984 0–0–1 1987 Indianapolis ROW bronze: lightweight single sculls
Orlando Nannini ARG FEN Olympics / Referee 1964—1968 1–1–1 1963 São Paulo FEN silver: foil team; 1967 Winnipeg FEN gold: foil team, bronze: foil
Nancy Napolski-Johnson USA SHO Olympics 1996—2000 0–1–0 1999 Winnipeg SHO silver: small-bore rifle 3 positions (competed as Nancy Johnson)
Márcia Narloch BRA ATH Olympics 1992—2004 1–1–0 2003 Santo Domingo ATH gold: marathon; 2007 Rio de Janeiro ATH silver: marathon
Omar Narváez ARG BOX Olympics 1996—2000 1–0–0 1999 Winnipeg BOX gold: flyweight -51 kg
Alexandra Nascimento BRA HBL Olympics 2004—2020 4–0–0 2003 Santo Domingo HAN gold; 2007 Rio de Janeiro HAN gold; 2011 Guadalajara HAN gold; 2015 Toronto HAN gold
André Nascimento BRA VVO Olympics 2004—2008 1–0–1 2003 Santo Domingo VOL bronze; 2007 Rio de Janeiro VOL gold
Grazielle Nascimento BRA FBL Olympics / Non-starter 2000—2012 1–1–0 2007 Rio de Janeiro FTB gold; 2011 Guadalajara FTB silver
Marvin Nash CAN ATH Olympics 1976 0–0–1 1975 Ciudad de México ATH bronze: 4×100 m relay
Ted Nash USA ROW Olympics 1960—1964 2–0–0 1959 Chicago ROW gold: coxless fours; 1963 São Paulo ROW gold: coxless fours
Cirilo Nassiff ARG SHO Olympics 1960—1964 1–0–0 1951 Buenos Aires SHO gold: small-bore rifle prone team
DeDee Nathan USA ATH Olympics 2000 1–0–1 1991 La Habana ATH gold: heptathlon; 1995 Mar del Plata ATH bronze: heptathlon
Walt Nathan PER TTE Olympics 1992 0–0–1 1983 Caracas TTN bronze: singles
Sue Nattrass CAN SHO Olympics 1976—2008 1–0–1 2003 Santo Domingo SHO bronze: double trap; 2007 Rio de Janeiro SHO gold: trap
Horacio Nava MEX ATH Olympics 2008—2020 1–2–1 2007 Rio de Janeiro ATH silver: 50 km walk; 2011 Guadalajara ATH gold: 50 km walk; 2015 Toronto ATH bronze: 50 km walk; 2019 Lima ATH silver: 50 km walk
Margarita Nava MEX EDR Olympics 1984 0–1–3 1983 Caracas EQU silver: dressage team; 1987 Indianapolis EQU bronze: dressage individual and dressage team; 1991 La Habana EQU bronze: dressage team
Patricia Nava MEX VVO Olympics 1968 0–0–2 1971 Cali VOL bronze; 1975 Ciudad de México VOL bronze
Alfredo Navarrete MEX FBL Olympics 1976 1–0–0 1975 Ciudad de México FTB gold
Daniel Navarrete ARG WRE Olympics 1984—1988 0–1–0 1991 La Habana WRE silver: freestyle lightweight -68 kg
Carlos Navarro MEX TKW Olympics 2016 1–0–0 2015 Toronto TKW gold: flyweight -58 kg
Gilberto Navarro CHI SHO Olympics 1960—1964 1–0–1 1959 Chicago SHO gold: trap; 1967 Winnipeg SHO bronze: skeet team
José Navarro USA BOX Olympics 2000 0–1–0 1999 Winnipeg BOX silver: flyweight -51 kg
Juan Navarro MEX BOX Olympics 2004 0–0–1 2003 Santo Domingo BOX bronze: light-welterweight -64 kg
Nicolás Navarro ARG FBL Non-starter 2008 1–0–0 2003 Santo Domingo FTB gold
Jesús Navas VEN BOX Olympics 1976 0–0–1 1975 Ciudad de México BOX bronze: light-welterweight -63.5 kg
Luis Miguel Navas CUB BBL Olympics 2008 1–0–0 2007 Rio de Janeiro BSB gold
Lia Neal USA SWM Olympics 2012—2016 2–0–0 2019 Lima SWI gold: 4×100 m freestyle relay and 4×100 m medley relay (swam in heats only)
McClinton Neal USA ATH Olympics 1992 0–1–0 1991 La Habana ATH silver: 400 m hurdles
Cindy Neale-Ishoy CAN EDR Olympics / Non-starter 1972—2004 1–0–0 1971 Cali EQU gold: dressage team (competed as Cindy Neale)
Mike Neary CAN ROW Olympics 1972—1976 0–0–2 1971 Cali ROW bronze: eights; 1975 Ciudad de México ROW bronze: coxless fours
Pat Neder USA HBL Olympics 1992—1996 1–0–0 1995 Mar del Plata HAN gold
Tim Nedow CAN ATH Olympics 2016—2020 0–1–0 2015 Toronto ATH silver: shot put
Ashley Nee USA CSL Olympics 2016 0–0–1 2015 Toronto CAN bronze: K1 slalom
Penny Neer USA ATH Olympics 1992 0–0–1 1983 Caracas ATH bronze: discus throw
Marcelo Negrão BRA VVO Olympics 1992—1996 0–2–0 1991 La Habana VOL silver; 1999 Winnipeg VOL silver
Negreli BRA VVO Olympics 1972 0–1–0 1975 Ciudad de México VOL silver
Fidel Negrete MEX ATH Olympics / Opening Flagbearer 1964 1–0–0 1963 São Paulo ATH gold: marathon
James Neil USA ROW Olympics 1992 2–0–0 1995 Mar del Plata ROW gold: coxed fours; 1999 Winnipeg ROW gold: eights
Sara Neil CAN CRD Olympics 1988 0–0–1 1987 Indianapolis CYC bronze: road race
Mike Neill USA BBL Olympics 2000 0–1–0 1999 Winnipeg BSB silver
Sandy Neilson USA SWM Olympics 1972 2–1–0 1971 Cali SWI gold: 100 m freestyle and 4×100 m freestyle relay, silver: 4×100 m medley relay
Terry Neilson CAN SAL Olympics 1984 1–0–0 1979 San Juan SAI gold: Laser
Nelsinho BRA ATH Olympics 1980—1984 0–0–2 1979 San Juan ATH bronze: 4×100 m relay; 1983 Caracas ATH bronze: 4×100 m relay
Chuck Nelson USA VVO Olympics 1964 1–1–0 1959 Chicago VOL gold; 1963 São Paulo VOL silver
Doug Nelson USA JUD Olympics 1984 0–0–2 1983 Caracas JUD bronze: heavyweight +95 kg; 1987 Indianapolis JUD bronze: heavyweight +95 kg
Karen Nelson CAN ATH Olympics 1984 0–0–1 1983 Caracas ATH bronze: 4×100 m relay
Van Nelson USA ATH Olympics 1968 2–0–0 1967 Winnipeg ATH gold: 5000 m and 10000 m
José Nenínger CUB HBL Olympics 1980 0–1–0 1987 Indianapolis HAN silver
Stephanie Nesbitt USA SWA Olympics 2004 1–0–0 2003 Santo Domingo SYN gold: group
Anthony Nesty SUR SWM Olympics / Opening Flagbearer 1984—2008 2–1–1 1987 Indianapolis SWI gold: 100 m butterfly, bronze: 200 m butterfly; 1991 La Habana SWI gold: 100 m butterfly, silver: 200 m butterfly
Stephen Netburn USA FEN Olympics 1968—1972 2–0–0 1971 Cali FEN gold: épée and épée team
Neto BRA FBL Olympics 1988 0–1–0 1983 Caracas FTB silver
Franco Neto BRA VBV Olympics 1996 0–0–1 1999 Winnipeg BVO bronze
Christabel Nettey CAN ATH Olympics 2016—2020 1–0–0 2015 Toronto ATH gold: long jump
Lisa Neuburger ISV SAL Olympics / Opening Flagbearer 1992—1996 0–1–0 1995 Mar del Plata SAI silver: Mistral
Marilyn Neufville JAM ATH Olympics / Non-starter 1972—1976 1–0–1 1971 Cali ATH gold: 400 m, bronze: 4×400 m relay
Kiley Neushul USA WPO Olympics 2016 2–0–0 2015 Toronto WAP gold; 2019 Lima WAP gold
Ivonete das Neves BRA VVO Olympics 1980 0–0–1 1979 San Juan VOL bronze
David Neville USA ATH Olympics 2008 0–1–0 2007 Rio de Janeiro ATH silver: 4×400 m relay
Jessica Newberry-Ransehousen USA EDR Olympics 1960—1988 0–1–0 1959 Chicago EQU silver: dressage team (competed as Jessica Newberry)
Emanuel Newdon BRA VVO Olympics 1964 1–0–0 1963 São Paulo VOL gold
Fred Newhouse USA ATH Olympics 1976 1–1–0 1971 Cali ATH gold: 4×400 m relay, silver: 400 m
Alysha Newman CAN ATH Olympics 2016—2024 0–0–1 2019 Lima ATH bronze: pole vault
Sandy Newsham CAN SBL Olympics 2000 0–1–0 1999 Winnipeg SOF silver
Gary Newton USA HOC Olympics 1984 0–0–1 1987 Indianapolis HOK bronze
Peter Newton USA CSP Olympics 1992—2000 4–3–0 1991 La Habana CAN silver: K2 500 m; 1995 Mar del Plata CAN gold: K1 500 m and K2 500 m, silver: K1 1000 m; 1999 Winnipeg CAN gold: K2 500 m and K4 1000 m, silver: K1 500 m
Carlos Neyra CHI ROW Olympics 1984 0–1–0 1983 Caracas ROW silver: eights
Joe Ng CAN TTE Olympics 1988—1996 2–2–7 1983 Caracas TTN silver: team; 1987 Indianapolis TTN gold: singles and doubles, bronze: mixed doubles and team; 1991 La Habana TTN silver: doubles, bronze: mixed doubles and team; 1995 Mar del Plata TTN bronze: doubles, mixed doubles, and team
Toby Ng CAN BDM Olympics 2012 1–1–0 2011 Guadalajara BDM gold: mixed doubles; 2015 Toronto BDM silver: mixed doubles
Khoa Dinh Nguyen USA TTE Olympics 2000—2004 1–1–0 1987 Indianapolis TTN gold: mixed doubles, silver: team
Helen Nichol CAN BDM Olympics 2004 1–0–0 2003 Santo Domingo BDM gold: doubles
Jacki Nichol CAN SBL Olympics 2000 0–1–0 1999 Winnipeg SOF silver
Laura Nicholls CAN SWM Olympics 1996—2000 3–1–1 1999 Winnipeg SWI gold: 100 m freestyle, 4×100 m freestyle relay, and 4×200 m freestyle relay, silver: 4×100 m medley relay, bronze: 50 m freestyle
Caroline Nichols USA HOC Olympics 2008—2012 1–0–0 2011 Guadalajara HOK gold
Jennifer Nichols USA ARC Olympics 2004—2012 3–0–1 2003 Santo Domingo ARC gold: recurve individual and recurve team; 2007 Rio de Janeiro ARC gold: recurve individual, bronze: recurve team
Julie Nichols USA ROW Olympics 2012 0–1–0 2007 Rio de Janeiro ROW silver: quadruple sculls
Rachel Nicol CAN SWM Olympics / YOG 2010—2016 0–1–1 2015 Toronto SWI silver: 4×100 m medley relay, bronze: 100 m breaststroke
Luis Nicolao ARG SWM Olympics 1960—1968 0–1–4 1963 São Paulo SWI silver: 4×100 m medley relay, bronze: 200 m butterfly; 1967 Winnipeg SWI bronze: 100 m butterfly, 4×100 m freestyle relay, and 4×200 m freestyle relay
Ashley Nicoll-Holzer CAN EDR Olympics 1988—2012 1–2–0 1991 La Habana EQU gold: dressage team, silver: dressage individual (competed as Ashley Munro); 2003 Santo Domingo EQU silver: dressage team (competed as Ashley Holzer)
Miguel Nido PUR TEN Olympics 1992 1–1–0 1991 La Habana TEN gold: doubles, silver: team
Bob Nieman USA MPN Olympics 1976—1988 0–1–0 1983 Caracas FEN silver: épée team
Jamie Nieto USA ATH Olympics 2004—2012 0–1–0 2003 Santo Domingo ATH silver: high jump
Raúl Nieto MEX EJP Olympics 1984 0–0–1 1983 Caracas EQU bronze: jumping team
Oliba Nieve ECU WLF Olympics 2012 2–1–1 2003 Santo Domingo WLT silver: super-heavyweight +75 kg; 2007 Rio de Janeiro WLT gold: super-heavyweight +75 kg; 2011 Guadalajara WLT gold: super-heavyweight +75 kg; 2015 Toronto WLT bronze: super-heavyweight +75 kg
Aníbal Nieves PUR WRE Olympics 1992—1996 0–2–0 1991 La Habana WRE silver: freestyle featherweight -62 kg; 1995 Mar del Plata WRE silver: freestyle featherweight -62 kg
Efraín Nieves PUR BBL Olympics 1992 0–1–1 1991 La Habana BSB silver; 1995 Mar del Plata BSB bronze
Nelson Nieves VEN FEN Olympics 1952 0–0–3 1955 Ciudad de México FEN bronze: foil team and épée team; 1963 São Paulo FEN bronze: foil team
Néstor Nieves VEN ATH Olympics 1996 1–0–0 2003 Santo Domingo ATH gold: 3000 m steeplechase
Conrad Nightingale USA ATH Olympics 1968 0–1–0 1967 Winnipeg ATH silver: 3000 m steelpechase
Nikita BRA SWM Olympics 1968 0–0–1 1967 Winnipeg SWI bronze: 4×100 m medley relay
Luis Niño MEX DIV Olympics 1964—1968 0–1–0 1967 Winnipeg DIV silver: platform
Leonard Harvey Nitz USA CTR Olympics 1976—1988 2–0–1 1983 Caracas CYC gold: 4000 m pursuit team; 1987 Indianapolis CYC gold: 4000 m pursuit team; bronze: 1000 m track time trial
Folau Niua USA RU7 Olympics 2016—2020 0–0–1 2011 Guadalajara RGS bronze
Ogonna Nnamani USA VVO Olympics 2004—2008 0–0–1 2003 Santo Domingo VOL bronze
Cindy Noble USA BKB Olympics 1984 1–0–0 1983 Caracas BAS gold
Jorge di Noco ARG JUD Olympics 1984 0–0–1 1987 Indianapolis JUD bronze: extra-lightweight -60 kg
Edith Noeding PER ATH Olympics 1972—1976 1–0–0 1975 Ciudad de México ATH gold: 100 m hurdles
Isabel Nogueira MEX VVO Olympics 1968 0–0–1 1963 São Paulo VOL bronze
Pamela Nogueira BRA SWA Olympics 2016 0–0–2 2007 Rio de Janeiro SYN bronze: group; 2011 Guadalajara SYN bronze: group
Luis Alberto Noguera VEN TKW Olympics 2004 1–0–0 1999 Winnipeg TKW gold: heavyweight +80 kg
Sean Nolan USA WPO Olympics 2000 1–0–0 1999 Winnipeg WAP gold
Johnny Nolasco DOM BOX Olympics 1996 0–0–1 1995 Mar del Plata BOX bronze: bantamweight -54 kg
Julio Nolasco ARG SHO Olympics 1948 2–0–1 1951 Buenos Aires SHO gold: small-bore rifle 3 positions team and free rifle 3 positions team, bronze: small-bore rifle 3 positions
Pedro Nolasco DOM BOX Olympics / Opening Flagbearer 1984 0–2–0 1979 San Juan BOX silver: flyweight -51 kg; 1983 Caracas BOX silver: bantamweight -54 kg
Alan Nolet CAN GAR Olympics 1988—1996 0–0–1 1995 Mar del Plata GYM bronze: team
John Nonna USA FEN Olympics 1972 0–1–1 1979 San Juan FEN silver: foil team, bronze: foil
Ana María Norbis URU SWM Olympics 1968 0–1–2 1967 Winnipeg SWI silver: 100 m breaststroke, bronze: 200 m breaststroke and 4×100 m medley relay
Adán Noriega MEX HOC Olympics 1968—1972 0–1–0 1971 Cali HOK silver
Manuel Noriega MEX HOC Olympics 1972 0–1–0 1971 Cali HOK silver
Sarah Noriega USA VVO Olympics 2000 0–0–1 1999 Winnipeg VOL bronze
Dianne Norman CAN BKB Olympics 1996—2000 0–1–0 1999 Winnipeg BAS silver
Kirstin Normand CAN SWA Olympics 2000 1–0–0 1999 Winnipeg SYN gold: group
Luis Normandín ARG WPO Olympics 1952 2–0–0 1951 Buenos Aires WAP gold; 1955 Ciudad de México WAP gold
Jon Normile USA FEN Olympics 1992 0–1–1 1991 La Habana FEN silver: épée, bronze: épée team
Devohn Noronha Teixeira CAN HOC Olympics 2016 0–1–0 2015 Toronto HOK silver
Jim Norris USA WPO Olympics 1952 0–0–1 1951 Buenos Aires WAP bronze
Doug Northway USA SWM Olympics 1972—1976 1–0–0 1975 Ciudad de México SWI gold: 400 m freestyle
Ruth Nortje RSA CSP Olympics 1996—2000 2–1–0 2003 Santo Domingo CAN gold: K1 500 m and K2 500 m, silver: K4 500 m
Ray Norton USA ATH Olympics 1960 3–0–0 1959 Chicago ATH gold: 100 m, 200 m, and 4×100 m relay
Arthur Nory Mariano BRA GAR Olympics / YOG 2010—2024 1–3–0 2015 Toronto GYM silver: team; 2019 Lima GYM gold: team, silver: all-around and horizontal bar
Marty Nothstein USA CTR Olympics 1996—2004 4–0–0 1995 Mar del Plata CYC gold: sprint; 1999 Winnipeg CYC gold: sprint, keirin, and team sprint
Tara Nott-Cunningham USA WLF Olympics 2000—2004 2–0–0 1999 Winnipeg WLT gold: flyweight -48 kg (competed as Tara Nott); 2003 Santo Domingo WLT gold: flyweight -48 kg
Andrea Nott USA SWA Olympics 2008 2–0–0 2007 Rio de Janeiro SYN gold: duet and group
Claudia Novelo MEX SWA Olympics 1984 0–0–2 1983 Caracas SYN bronze: duet and group
Eduardo Novoa CHI JUD Olympics 1984 0–0–1 1979 San Juan JUD bronze: middleweight -86 kg
Danek Nowosielski CAN FEN Olympics 1988—1996 0–1–3 1987 Indianapolis FEN silver: foil team, bronze: sabre team; 1991 La Habana FEN bronze: épée and foil team
Leszek Nowosielski CAN FEN Olympics 1992 0–0–1 1995 Mar del Plata FEN bronze: sabre team
José Nozari MEX SHO Olympics 1948 0–1–0 1951 Buenos Aires SHO silver: free rifle 3 positions team
Laís Nunes BRA WRE Olympics 2016—2020 0–0–1 2019 Lima WRE bronze: freestyle middleweight -62 kg
Argenis Núñez DOM BOX Olympics 2008 0–1–1 2003 Santo Domingo BOX bronze: light-heavyweight -81 kg; 2007 Rio de Janeiro BOX silver: middleweight -75 kg
Daniel Núñez CUB WLF Olympics 1976—1980 3–0–0 1979 San Juan WLT bantamweight -56 kg gold: clean & jerk, snatch, and total
Francisco Núñez ARG BOX Olympics 1948—1956 1–0–0 1951 Buenos Aires BOX gold: featherweight -57 kg
Juan Núñez DOM ATH Olympics / Opening Flagbearer 1988 0–0–1 1987 Indianapolis ATH bronze: 100 m
Marcos Núñez CHI TTE Olympics 1988—1992 0–0–2 1983 Caracas TTN bronze: doubles; 1987 Indianapolis TTN bronze: doubles
Ramón Núñez CUB FBL Olympics 1980 0–1–0 1979 San Juan FTB silver
Roberto Núñez ARG GAR Olympics 1948 4–3–0 1951 Buenos Aires GYM gold: team, floor team, horizontal bar team, and pommelled horse team, silver: parallel bars team, rings team, and horse vault team
Teresa Núñez PER VVO Olympics 1968—1976 0–2–0 1971 Cali VOL silver; 1975 Ciudad de México VOL silver
John Nunn USA ROW Olympics 1968 0–1–1 1967 Winnipeg ROW silver: single sculls; 1971 Cali ROW bronze: double sculls
Jorge Nuré ARG BKB Olympics 1948 0–1–0 1951 Buenos Aires BAS silver
Kia Nurse CAN BKB Olympics 2016—2024 1–0–0 2015 Toronto BAS gold
Stacey Nuveman USA SBL Olympics 2000—2008 2–0–0 1999 Winnipeg SOF gold; 2003 Santo Domingo SOF gold
Don Nygord USA SHO Olympics 1984—1988 12–5–1 1979 San Juan SHO gold: 10 m air pistol and 10 m air pistol team; 1983 Caracas SHO gold: 25 m standard pistol team, silver: 10 m air pistol, 50 m free pistol team, 25 m centre fire pistol team, and 10 m air pistol team; 1987 Indianapolis SHO gold: 10 m air pistol, 50 m free pistol team, 25 m center fire pistol team, and 10 m air pistol team; 1991 La Habana SHO gold: 50 m centre fire pistol, 50 m center fire pistol team, and 25 m standard pistol team, bronze: 25 m standard pistol; 1995 Mar del Plata SHO gold: 10 m air pistol team and 25 m standard pistol team, silver: 25 m standard pistol
Tory Nyhaug CAN BMX Olympics 2012—2016 1–0–0 2015 Toronto CYC gold: BMX racing
Tibor Nyilas USA FEN Olympics / Referee 1948—1972 5–1–0 1951 Buenos Aires FEN gold: sabre, sabre team, and foil team; 1955 Ciudad de México FEN gold: sabre team, silver: foil team; 1959 Chicago FEN gold: sabre team
Leah O'Brien-Amico USA SBL Olympics 1996—2004 2–0–0 1999 Winnipeg SOF gold; 2003 Santo Domingo SOF gold
Kate O'Brien CAN CTR Olympics 2016 1–1–0 2015 Toronto CYC gold: sprint team, silver: sprint
Mike O'Brien USA SWM Olympics 1984 2–0–1 1983 Caracas SWI bronze: 400 m medley; 1987 Indianapolis SWI gold: 200 m backstroke and 4×200 m freestyle relay
Parry O'Brien USA ATH Olympics / Olympic Flagbearer / Opening Flagbearer 1952—1984 2–1–1 1955 Ciudad de México ATH gold: shot put, silver: discus throw; 1959 Chicago ATH gold: shot put, bronze: discus throw
Jessica O'Connell CAN ATH Olympics 2016 0–1–0 2019 Lima ATH silver: 5000 m
Coralie O'Connor USA SWM Olympics 1952 1–1–0 1955 Ciudad de México SWI gold: 4×100 m medley relay, silver: 100 m backstroke
David O'Connor USA EVE Olympics 1996—2000 1–1–0 1999 Winnipeg EQU gold: Three-Day Event team, silver: Three-Day Event individual
Denise O'Connor USA FEN Olympics 1964—1976 0–0–1 1975 Ciudad de México FEN bronze: foil team
Mary Anne O'Connor USA BKB Olympics 1976 1–0–0 1975 Ciudad de México BAS gold
Patrick O'Connor JAM ATH Olympics 1992 0–0–1 1991 La Habana ATH bronze: 4×400 m relay
George O'Day USA SAL Olympics 1960 1–0–0 1959 Chicago SAI gold: 5.5 m
Katie O'Donnell-Bam USA HOC Olympics 2012—2016 2–0–0 2011 Guadalajara HOK gold (competed as Katie O'Donnell); 2015 Toronto HOK gold (competed as Katie O'Donnell)
Ann O'Donnell USA FEN Olympics 1972—1976 0–0–2 1975 Ciudad de México FEN bronze: foil team (competed as Ann O'Donnell); 1979 San Juan FEN bronze: foil team (competed as Ann O'Donnell-Russell)
Jennifer O'Donnell USA ARC Olympics 1992 1–2–0 1991 La Habana ARC gold: recurve team, silver: recurve individual and 60 m recurve
Diane O'Grady CAN ROW Olympics 1996 1–0–0 1995 Mar del Plata ROW gold: double sculls
Selena O'Hanlon CAN EVE Olympics 2008 0–1–0 2011 Guadalajara EQU silver: Three-Day Event team
Kelley O'Hara USA FBL Olympics 2012—2020 0–1–0 2007 Rio de Janeiro FTB silver
Mike O'Hara USA VVO Olympics 1964 1–1–0 1959 Chicago VOL gold; 1963 São Paulo VOL silver
Chris O'Loughlin USA FEN Olympics 1992 0–0–1 1991 La Habana FEN bronze: épée team
Brandon O'Neill CAN GAR Olympics 2008 1–0–0 2003 Santo Domingo GYM gold: floor
John O'Neill USA HOC Olympics 1996 0–0–2 1991 La Habana HOK bronze; 1995 Mar del Plata HOK bronze
Mary O'Neill USA FEN Olympics 1988—1992 1–0–0 1987 Indianapolis FEN gold: foil team
Sean O'Neill USA TTE Olympics 1988—1992 2–5–1 1983 Caracas TTN gold: mixed doubles, bronze: doubles; 1987 Indianapolis TTN silver: singles, mixed doubles, and team; 1991 La Habana TTN gold: mixed doubles, silver: team; 1995 Mar del Plata TTN silver: team
Gar O'Quinn USA GAR Olympics 1960 3–0–2 1959 Chicago GYM gold: team, bronze: pommelled horse; 1963 São Paulo GYM gold: pommelled horse and team, bronze: parallel bars
Rory O'Reilly USA CTR Olympics 1984 1–0–0 1983 Caracas CYC gold: 1000 m track time trial
Mo O'Toole USA WPO Olympics 2000 0–1–0 1999 Winnipeg WAP silver
Alex Oakley CAN ATH Olympics 1956—1976 1–0–0 1963 São Paulo ATH gold: 20 km walk
Paula Lynn Obanana USA BDM Olympics 2016 1–0–3 2011 Guadalajara BDM bronze: doubles and mixed doubles; 2015 Toronto BDM gold: doubles; 2019 Lima BDM bronze: mixed doubles
Alex Obert USA WPO Olympics 2016—2024 2–0–0 2015 Toronto WAP gold; 2019 Lima WAP gold
Fabricio Oberto ARG BKB Olympics 1996—2008 1–0–0 1995 Mar del Plata BAS gold
Jahir Ocampo MEX DIV Olympics 2016 1–1–0 2015 Toronto DIV gold: synchronized springboard, silver: 3 m springboard
Mauricio Ocampo MEX SWM Olympics 1960 0–1–0 1959 Chicago SWI silver: 4×200 m freestyle relay
Mónica Ocampo MEX FBL Non-starter 2004 0–0–2 2011 Guadalajara FTB bronze; 2015 Toronto FTB bronze
Walter Ocampo MEX SWM Olympics 1952—1956 0–1–2 1955 Ciudad de México SWI silver: 200 m butterfly, bronze: 200 m breaststroke and 4×100 m medley relay
Luis Ocaña CUB WRE Olympics 1980 0–1–0 1979 San Juan WRE silver: freestyle flyweight -52 kg
José Ocando VEN WLF Olympics 2008 0–1–0 2007 Rio de Janeiro WLT silver: middleweight -77 kg
Asunción Ocasio PUR TKW Olympics 2008 0–0–1 2007 Rio de Janeiro TKW bronze: welterweight -67 kg
Bruno Ochman CAN WRE Olympics 1956 0–1–0 1959 Chicago WRE silver: freestyle welterweight -73 kg
Debra Ochs USA ARC Olympics 1988 2–3–0 1983 Caracas ARC gold: 50 m recurve and recurve team, silver: recurve individual, 60 m recurve, and 70 m recurve
Kristy Odamura CAN SBL Olympics 2000—2004 0–2–0 2003 Santo Domingo SOF silver; 2007 Rio de Janeiro SOF silver
Vicyohandri Odelín CUB BBL Olympics 2004—2008 1–0–1 2003 Santo Domingo BSB gold; 2011 Guadalajara BSB bronze
Beverly Oden USA VVO Olympics 1996 0–1–0 1995 Mar del Plata VOL silver
Elaina Oden USA VVO Olympics 1992—1996 0–1–0 1995 Mar del Plata VOL silver
Kim Oden USA VVO Olympics 1988—1992 0–0–1 1987 Indianapolis VOL bronze