Gina "Boom Boom" Guidi (born May 19, 1962) is a California native and resident of San Francisco, California, a professional female boxer, and a three-time champion of the world. Guidi began boxing with her brothers at the local police athletic league as a teen, and has been boxing for more than 25 years. With an undefeated amateur record of 12-0 with nine knock outs (KOs), she went professional in 1994. Guidi regularly donates time and money to non-profit organizations, including domestic abuse prevention and AIDS research programs.