Olga Sergeyevna Ryabinkina (Russian: Ольга Серге́евна Рябинкина; born 24 September 1976 in Bryansk) is a female shot putter from Russia.
She finished tenth at the 2000 Summer Olympics. At the 2004 Summer Olympics she failed to progress from the initial round.
In 2005, she achieved a personal best throw with 19.65 metres and won bronze at the European Indoor Championships and silver at the World Championships. Eight years later she was pronounced 2005 World champion when a retest of Nadzeya Astapchuk's doping sample revealed that she had been doping.[1]
In 2006, she won the bronze medal at the World Indoor Championships, finished fourth at the 2006 European Athletics Championships and second at the World Cup, the latter in a season best of 19.54 metres.
| 1994 | World Junior Championships | Lisbon, Portugal | 9th | Shot put | 15.31 m | |
| 1995 | European Junior Championships | Nyíregyháza, Hungary | 3rd | Shot put | 16.55 m | |
| 1997 | European U23 Championships | Turku, Finland | 4th | Shot put | 17.56 m | |
| 4th | Discus throw | 56.06 m | ||||
| 2000 | Olympic Games | Sydney, Australia | 10th | Shot put | 17.85 m | |
| 2003 | World Championships | Paris, France | 16th (q) | Shot put | 17.74 m | |
| 2004 | Olympic Games | Athens, Greece | 12th (q) | Shot put | 18.00 m | |
| 2005 | European Indoor Championships | Madrid, Spain | 3rd | Shot put | 18.83 m | |
| World Championships | Helsinki, Finland | 1st | Shot put | 19.64 m | ||
| 2006 | World Indoor Championships | Moscow, Russia | 3rd | Shot put | 19.24 m | |
| European Championships | Gothenburg, Sweden | 4th | Shot put | 19.02 m | ||
| 2007 | European Indoor Championships | Birmingham, United Kingdom | 3rd | Shot put | 18.16 m |