# List of Summer Olympics venues: O

For the Summer Olympics, there are a total of 66 venues starting with the letter 'O'.
| Venue | Games | Sports | Capacity |
| Oaklands Hunt Club | 1956 Melbourne | Modern pentathlon (riding, running) | 25,700 |
| Ocoee Whitewater Center | 1996 Atlanta | Canoeing (slalom) | 14,400 |
| Old Stadion | 1928 Amsterdam | Field hockey | 29,000 |
| Old Trafford | 2012 London | Football | 76,000 |
| Olympiahalle | 1972 Munich | Gymnastics, Handball (final) | 10.563 |
| Olympiastadion | 1972 Munich | Athletics, Ceremonies (opening/ closing), Equestrian (jumping team), Football (final), Modern pentathlon (running) | 77,000 |
| Olympic Aquatics Stadium | 2016 Rio de Janeiro | Swimming, Synchronized swimming | 18,000 |
| Olympic Archery Field, Joliette | 1976 Montreal | Archery | 2,000 |
| Olympic Auditorium | 1932 Los Angeles | Boxing, Weightlifting, Wrestling | 10,000. |
| Olympic Baseball Centre | 2004 Athens | Baseball | Not listed. |
| Olympic BMX Centre | 2016 Rio de Janeiro | Cycling (BMX) | 7,500 |
| Olympic Canoe/Kayak Slalom Centre | 2004 Athens | Canoeing (slalom) | 3,150 |
| Olympic Equestrian Centre, Bromont | 1976 Montreal | Equestrian (all events but jumping team final), Modern pentathlon (riding) | 35,000 |
| Olympic Fencing Gymnasium | 1988 Seoul | Fencing, Modern pentathlon (fencing) | 7,000 |
| Olympic Green Archery Field | 2008 Beijing | Archery | 5,000 |
| Olympic Green Convention Center | 2008 Beijing | Fencing, Modern pentathlon (fencing, shooting) | 5,695 |
| Olympic Green Hockey Field | 2008 Beijing | Field hockey | 17,000 |
| Olympic Green Tennis Center | 2008 Beijing | Tennis | 17,400 |
| Olympic Gymnastics Hall | 1988 Seoul | Gymnastics | 14,730 |
| Olympic Harbour | 1992 Barcelona | Sailing | Not listed. |
| Olympic Hockey Centre | 2004 Athens | Field hockey | 20,000 |
| Olympic Hockey Centre | 2016 Rio de Janeiro | Field hockey | 15,000 |
| Olympic Indoor Hall | 2004 Athens | Basketball (final), Gymnastics (artistic, trampolining) | 19,250 |
| Olympic Modern Pentathlon Centre | 2004 Athens | Modern pentathlon | 10,000 |
| Olympic Mountain Bike Park | 2016 Rio de Janeiro | Cycling (mountain bike) | 5,000 |
| Olympic Park Stadium | 1956 Melbourne | Football | 40,000 |
| Olympic Pool | 1976 Montreal | Diving, Modern pentathlon (swimming), Swimming, Water polo (final) | 10,000 |
| Olympic Regatta in Tallinn | 1980 Moscow | Sailing | Not listed |
| Olympic Sailing Shore Base | 2000 Sydney | Sailing | 10,000 |
| Olympic Shooting Range, L'Acadie | 1976 Montreal | Modern pentathlon (shooting), Shooting | 1,000 |
| Olympic Softball Stadium | 2004 Athens | Softball | Not listed. |
| Olympic Sports Centre | 2008 Beijing | Football, Modern Pentathlon (riding, running) | 36,228 |
| Olympic Sports Center Gymnasium | 2008 Beijing | Handball | 7,000 |
| Olympic Sports Park Swim Stadium | 1928 Amsterdam | Diving, Modern pentathlon (swimming), Swimming, Water polo | 4,440 |
| Olympic Stadium | 1928 Amsterdam | Athletics, Cycling (track), Equestrian (jumping), Football (final), Gymnastics | 31,600 |
| Olympic Stadium | 1932 Los Angeles | Athletics, Equestrian (eventing, jumping), Field hockey, Gymnastics | 105,000 |
| Olympic Stadium | 1936 Berlin | Athletics, Equestrian (jumping), Football (final), Handball (final) | 100,000 |
| Olympic Stadium | 1952 Helsinki | Athletics, Equestrian (jumping), Football (final) | 70,000 |
| Olympic Stadium | 1956 Stockholm | Equestrian (dressage, eventing, jumping) | 6,000 |
| Olympic Stadium | 1976 Montreal | Athletics, Ceremonies (opening/ closing), Equestrian (jumping team final), Football (final) | 70,000 |
| Olympic Stadium | 1988 Seoul | Athletics, Equestrian (jumping individual final), Football (final) | 69,950 |
| Olympic Stadium | 1996 Atlanta | Athletics, Ceremonies (opening/ closing) | 85,600 |
| Olympic Stadium | 2000 Sydney | Ceremonies (opening/closing), Athletics, Football (final) | 110,000 |
| Olympic Stadium | 2004 Athens | Ceremonies (opening/ closing), Athletics, Football (final) | 71,030 |
| Olympic Stadium | 2012 London | Athletics, Ceremonies (opening/ closing) | 80,000 |
| Olympic Swim Stadium | 1984 Los Angeles | Diving, Swimming, Synchronized swimming | 16,500 |
| Olympic Swimming Stadium | 1936 Berlin | Diving, Modern pentathlon (swimming), Swimming, Water polo | 20,000. |
| Olympic Tennis Center | 1988 Seoul | Tennis | 15,000 |
| Olympic Tennis Centre | 2016 Rio de Janeiro | Tennis | 18,250 |
| Olympic Training Center – Arena 1 | 2016 Rio de Janeiro | Basketball | 16,000 |
| Olympic Training Center – Arena 2 | 2016 Rio de Janeiro | Judo, Taekwondo | 10,000 |
| Olympic Training Center – Arena 3 | 2016 Rio de Janeiro | Wrestling | 10,000 |
| Olympic Training Center – Arena 4 | 2016 Rio de Janeiro | Handball | 12,000 |
| Olympic Velodrome | 1960 Rome | Cycling (track), Field hockey (final) | 20,000 |
| Olympic Velodrome | 1976 Montreal | Cycling (track), Judo | 2,600 |
| Olympic Velodrome | 1984 Los Angeles | Cycling (track) | 8,400 |
| Olympic Velodrome | 1988 Seoul | Cycling (track) | 6,000 |
| Olympic Weightlifting Gymnasium | 1988 Seoul | Weightlifting | 4,000 |
| Olympic Whitewater Stadium | 2016 Rio de Janeiro | Canoeing (slalom) | 8,000 |
| Olympisch Stadion | 1920 Antwerp | Athletics, Equestrian, Field hockey, Football (final), Gymnastics, Modern pentathlon, Rugby union, Tug of war, Weightlifting | 12,771 |
| Ōmiya Football Field | 1964 Tokyo | Football | 14,400 |
| Omni Coliseum | 1996 Atlanta | Volleyball (indoor final) | 16,500 |
| Orange Bowl | 1996 Atlanta | Football | 72,700 |
| Ostend | 1920 Antwerp | Polo, Sailing | Not listed. |
| Östermalm Athletic Grounds | 1912 Stockholm | Equestrian, Fencing, Modern pentathlon (fencing), Tennis | Not listed. |