María José Prieto Larraín (Santiago, February 20, 1977) is a Chilean film and television actress.

She later studied Theater at the Pontifical Catholic University (1996-1998) María José Prieto made her television debut at age 21, in the telenovela A todo dar, produced and broadcast by Megavisión, a participation that led her to win the APES award for Best Acting Screening.

After participating in some telefilms from the same station, she traveled to Madrid, Spain, to take a circus-theater course at the LeCoq academy directed by Ana Vasquez De Castro and then return to Chile to join Channel 13 in 2001, where she acts in the Telenovela Corazón Pirata, which obtained a poor tuning.

After this stage, the actress travels to New York where she studies at the Lee Strasberg Academy, and then returns to Chile to dedicate herself mainly to theater, where she acted in works such as "Now there are the children" and "Crime and shampoo" .

She is married to fellow actor Cristián Campos since 2009, and her sister is Ángela Prieto, also an actress.