Estíbaliz Martínez Yerro (born 9 May 1980 in Vitoria) is a Spanish rhythmic gymnast and Olympic Champion. She competed at the 1996 Summer Olympics in Atlanta, and won a gold medal with the Spanish group.[1] The team was formed by Estíbaliz, Estela Giménez, Marta Baldó, Nuria Cabanillas, Lorena Guréndez and Tania Lamarca. Also she was two times world champion in 3 balls/2 ribbons.