| Athlete |
Nation(s) |
Sport(s) |
Role(s) |
Era |
Notes |
| Milan Aleksić |
 SRB |
WPO |
Olympics |
2012—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Dragan Andrić |
 GRE
SRB
 SCG
 YUG |
WPO |
Olympics / Coach |
1984—2012 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| Tibor Benedek |
 HUN |
WPO |
Olympics / Coach |
1992—2016 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| Péter Biros |
HUN |
WPO |
Olympics / Opening Flagbearer |
2000—2012 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| Antal Bolvári |
HUN |
WPO |
Olympics |
1952—1956 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| György Bródy |
HUN |
WPO |
Olympics / Non-starter / Coach / Referee |
1928—1960 |
Water Polo, Men: Los Angeles 1932/Berlin 1936 |
| Charles Bugbee |
 GBR |
WPO |
Olympics |
1912—1924 |
Water Polo, Men: Stockholm 1912/Antwerpen 1920 |
| Perica Bukić |
 CRO
YUG |
WPO |
Olympics / Opening Flagbearer |
1984—1996 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| George Cornet |
GBR |
WPO |
Olympics |
1908—1912 |
Water Polo, Men: London 1908/Stockholm 1912 |
| Kami Craig |
 USA |
WPO |
Olympics |
2008—2016 |
Water Polo, Women: London 2012/Rio de Janeiro 2016 |
| Miloš Ćuk |
SRB |
WPO |
Olympics |
2016—2024 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Nikola Dedović |
SRB |
WPO |
Olympics |
2020—2024 |
Water Polo, Men: Tokyo 2020/Paris 2024 |
| Veselin Đuho |
CRO
YUG |
WPO |
Olympics |
1984—1988 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| Rachel Fattal |
USA |
WPO |
Olympics |
2016—2024 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| Filip Filipović |
SRB |
WPO |
Olympics / Opening Flagbearer |
2008—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Aria Fischer |
USA |
WPO |
Olympics |
2016—2020 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| Makenzie Fischer |
USA |
WPO |
Olympics |
2016—2020 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| Rajmund Fodor |
HUN |
WPO |
Olympics |
1996—2004 |
Water Polo, Men: Sydney 2000/Athina 2004 |
| István Gergely |
HUN
 SVK |
WPO |
Olympics |
2000—2008 |
Water Polo, Men: Athina 2004/Beijing 2008 |
| Kaleigh Gilchrist |
USA |
WPO |
Olympics |
2016—2024 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| Dezső Gyarmati |
HUN |
WPO |
Olympics / Coach |
1948—1980 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| Olivér Halassy |
HUN |
SWM/WPO |
Olympics / Non-starter |
1928—1936 |
Water Polo, Men: Los Angeles 1932/Berlin 1936 |
| Márton Homonnai |
HUN |
WPO |
Olympics |
1924—1936 |
Water Polo, Men: Los Angeles 1932/Berlin 1936 |
| Nikola Jakšić |
SRB |
WPO |
Olympics |
2016—2024 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020/Paris 2024 |
| László Jeney |
HUN |
SWM/WPO |
Olympics / Non-starter |
1948—1960 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| Ashleigh Johnson |
USA |
WPO |
Olympics |
2016—2024 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| György Kárpáti |
HUN |
SWM/WPO |
Olympics / Non-starter |
1952—1964 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| Tamás Kásás |
HUN |
WPO |
Olympics |
1996—2012 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| Gergő Kiss |
HUN |
WPO |
Olympics |
2000—2012 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| Deni Lušić |
CRO
YUG |
WPO |
Olympics |
1984—1988 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| Norbert Madaras |
HUN |
WPO |
Olympics |
2004—2012 |
Water Polo, Men: Athina 2004/Beijing 2008 |
| Dušan Mandić |
SRB |
WPO |
Olympics / Opening Flagbearer |
2012—2024 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020/Paris 2024 |
| Kálmán Markovits |
HUN
 MEX |
WPO |
Olympics / Coach |
1952—1976 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| Courtney Mathewson |
USA |
WPO |
Olympics |
2012—2016 |
Water Polo, Women: London 2012/Rio de Janeiro 2016 |
| Igor Milanović |
SRB
SCG
YUG |
WPO |
Olympics / Opening Flagbearer |
1984—1996 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| Branislav Mitrović |
SRB |
WPO |
Olympics |
2016—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Stefan Mitrović |
SRB |
WPO |
Olympics |
2012—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Tamás Molnár |
HUN |
WPO |
Olympics |
2000—2008 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| Maddie Musselman |
USA |
WPO |
Olympics |
2016—2024 |
Water Polo, Women: Rio de Janeiro 2016/Tokyo 2020 |
| János Németh |
HUN |
WPO |
Olympics / Coach / Referee |
1932—1948 |
Water Polo, Men: Los Angeles 1932/Berlin 1936 |
| Tomislav Paškvalin |
CRO
YUG |
WPO |
Olympics |
1984—1988 |
Water Polo, Men: Los Angeles 1984/Seoul 1988 |
| Duško Pijetlović |
SRB |
WPO |
Olympics |
2008—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Gojko Pijetlović |
SRB |
WPO |
Olympics |
2012—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Andrija Prlainović |
SRB |
WPO |
Olympics |
2008—2020 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020 |
| Paul Radmilovic |
GBR |
SWM/WPO |
Olympics / 1906 / Non-starter / Coach |
1906—1928 |
Water Polo, Men: London 1908/Stockholm 1912/Antwerpen 1920 |
| Sava Ranđelović |
SRB |
WPO |
Olympics |
2016—2024 |
Water Polo, Men: Rio de Janeiro 2016/Tokyo 2020/Paris 2024 |
| Strahinja Rašović |
SRB |
WPO |
Olympics |
2020—2024 |
Water Polo, Men: Tokyo 2020/Paris 2024 |
| Miklós Sárkány |
HUN |
WPO |
Olympics |
1932—1936 |
Water Polo, Men: Los Angeles 1932/Berlin 1936 |
| Melissa Seidemann |
USA |
WPO |
Olympics |
2012—2020 |
Water Polo, Women: London 2012/Rio de Janeiro 2016/Tokyo 2020 |
| Charles Smith |
GBR |
WPO |
Olympics / Opening Flagbearer |
1908—1924 |
Water Polo, Men: London 1908/Stockholm 1912/Antwerpen 1920 |
| Maggie Steffens |
USA |
WPO |
Olympics |
2012—2024 |
Water Polo, Women: London 2012/Rio de Janeiro 2016/Tokyo 2020 |
| Barnabás Steinmetz |
HUN |
WPO |
Olympics |
2000—2004 |
Water Polo, Men: Sydney 2000/Athina 2004 |
| Zoltán Szécsi |
HUN |
WPO |
Olympics |
2000—2012 |
Water Polo, Men: Sydney 2000/Athina 2004/Beijing 2008 |
| István Szívós, Sr. |
 EGY
HUN |
SWM/WPO |
Olympics / Coach / Opening Flagbearer |
1948—1980 |
Water Polo, Men: Helsinki 1952/Melbourne 1956 |
| Tamás Varga |
HUN |
WPO |
Olympics |
2004—2012 |
Water Polo, Men: Athina 2004/Beijing 2008 |
| Attila Vári |
HUN |
WPO |
Olympics |
2000—2004 |
Water Polo, Men: Sydney 2000/Athina 2004 |
| George Wilkinson |
GBR |
WPO |
Olympics |
1908—1912 |
Water Polo, Men: London 1908/Stockholm 1912 |