Ecuador competed at the 2012 Summer Olympics in London, from 27 July to 12 August 2012.

A total of 36 athletes, 23 men and 13 women, competed in 11 sports; there was only a single competitor in sprint canoeing, equestrian, judo, and shooting.

Five Ecuadorian athletes had competed in Beijing, including weightlifter Alexandra Escobar, who was at her third Olympic Games in London.

Argentina-born sprint kayaker César de Cesare became the nation's first male flag bearer at the opening ceremony since 1996.

Sprinter Álex Quiñónez qualified successfully for the final rounds in the men's 200 metres, but missed out of the nation's first medal in London.