 | Obaid Al Jasmi, last name sometime spelled "Jasimi", is a two-time Olympic swimmer from the... more » |
| Octavio Alesi is an Olympic swimmer from Venezuela. He swam for Venezuela at the: ⁕Olympics:... more » |
| Ödön Gróf was an Hungarian swimmer who competed in the 1936 Summer Olympics. In the 1936... more » |
 | Oksana Hatamkhanova is an Olympic swimmer from Azerbaijan. She swam for Azerbaijan at in the... more » |
| Olaf Wildeboer Faber is a freestyle swimmer. He is of Dutch origin. His parents, both born and... more » |
 | Oleg Lisogor is a Ukrainian swimmer. Born in Brovary, Kiev Oblast, Soviet Union, Lisogor is the... more » |
 | Oleksandr Volynets is a Ukrainian swimmer who competes in the freestyle events. He has been a... more » |
 | Olga Aleksandrovna Brusnikina is a Russian competitor in synchronized swimming and three times... more » |
| Olga Kochetkova is a retired Russian backstroke swimmer who won a silver medal in the 4×100 m... more » |
 | Mary Olive McKean, also known by her married name, Olive Mucha, was an American competition... more » |
 | Olivér Halassy was a Hungarian water polo player and freestyle swimmer who competed in the 1928... more » |
| Olivia Rawlinson is a swimmer from the Isle of Man. She mainly competes in the 200 m freestyle... more » |
 | Omar Andrés Pinzón García is a competition swimmer who represented Colombia at the 2004 Olympics... more » |
| Ophélie Aspord is a French distance swimmer. At the 2012 Summer Olympics, she competed in the... more » |
 | Ophélie-Cyrielle Étienne is a French swimmer from Wissembourg. In the 2012 Summer Olympics her... more » |
| Orkun Darnel is a professional swimmer. more » |
| Örn Arnarson is a swimmer from Iceland, who won his first major title in 1998 at the European SC... more » |
| Orsolya Tompa is a Hungarian swimmer, who specialized in sprint freestyle and butterfly events... more » |
 | Orvar Trolle was a Swedish freestyle swimmer. He won a bronze medal in 4 x 200 m freestyle relay... more » |
| Oscar Grégoire was a Belgian water polo player and backstroke swimmer who competed in the 1900... more » |
 | Oszkár Abay-Nemes was a Hungarian swimmer who competed in the 1936 Summer Olympics. In the 1936... more » |
 | Otto Fahr was a German backstroke swimmer, who competed in the 1912 Summer Olympics. He was born... more » |
 | Dr. Otto Herschmann was a Jewish Austrian swimmer, fencer, lawyer, and sports... more » |
| Otto Scheff, born Otto Sochaczewsky was an Austrian freestyle swimmer, water polo player,... more » |
 | Otto Wahle was a Jewish Austrian swimmer who competed in the late 19th century and early 20th... more » |
