Luisa Cristina del Rosario Maida Leiva (born October 7, 1979 in San Salvador) is a Salvadoran sport shooter. She won two medals, silver and bronze, for the 10 and 25 m pistol events at the 2007 Pan American Games in Rio de Janeiro, Brazil. Maida made her official debut for the 2000 Summer Olympics in Sydney, where she placed thirty-sixth in the 10 m air pistol, and forty-first in the 25 m pistol, with total scores of 368 and 557 points, respectively.