Romania competed at the 2012 Summer Olympics in London from 27 July to 12 August 2012. This nation has competed at the Summer Olympic Games since its official debut in 1924, missing only two editions, including the 1948 Summer Olympics. Despite being London's third Olympic Games, this is the first time the Romanian team has competed in London. The Romanian Olympic and Sports Committee sent a total of 103 athletes to the Games, 54 men and 49 women, to compete in 14 sports.

Larisa Andreea Iordache is a former Romanian artistic gymnast. She represented Romania at the 2012 Olympic Games, winning a bronze medal with the team, and at the 2020 Olympic Games.