10 July 1977) is a Mexican powerlifter in the 44 kilograms (97 lb) - 60 kilograms (130 lb) bracket.
She has five times been a Paralympic champion and is the only powerlifter in the world to have Paralympic champion in three divisions.Pérez has been a member of the Mexican delegation to the Paralympic Games since 2000.
It was her participation of 2000 Summer Paralympics that won Pérez her first silver medal in the 52 kilograms (115 lb) powerlifting event, and she would again win a silver medal in the 2004 Summer Paralympics in Athens, but this time in the 48 kilograms (106 lb) event.
At the 2008 Summer Paralympics, Pérez won her first gold medal in the 52kg event and surpass the Pan-American record with a lifted weight of 127.5 kilograms (281 lb).
She would do this again four years later at the 2012 Summer Paralympics, this time with a lifted weight of 135.5 kilograms (299 lb).At the continental level, Pérez won a gold medal Parapan Games 2007 in Rio de Janeiro in the 52kg event and broke the world Paralympic powerlifting record with 130.5 kilograms (288 lb) on 14 August 2007.
At the 2011 Parapan American Games held in Guadalajara, she received the gold medal in the women's 44kg - 60kg event.In 2008, Pérez received the National Mexican Sports Award.