Ona Carbonell

Ona Carbonell Ballestero (born 5 June 1990) is a Spanish synchronized swimmer.

Carbonell competed at the 2012 Summer Olympics, where she won the silver medal in the women's duet, with Andrea Fuentes, and a bronze medal in the team event. She competed in the women's duet at the 2016 Summer Olympics, with Gemma Mengual, finishing in fourth place. A documentary, Starting Over, was made of her grappling with the roles of mother and athlete. In December 2022 she was honored as one of the BBC 100 Women.