Christina L. Santiago (born October 15, 1981 in Chicago, Illinois) is an American model and actress. She was one of three finalists of the Fox TV special Who Wants to Be a Playboy Centerfold? and was chosen as Playboy's Playmate of the Month in August, 2002. She became 2003's Playmate of the Year.

Her PMOY issue in June 2003 is the first to not feature the PMOY on the cover. Instead, the celebrity pictorial subject, Sarah Kozer, was the cover model. Christina's name did not appear on the cover at all.

She appeared in the 2005 Playmates at Play at the Playboy Mansion swimsuit calendar as calendar girl of August. The calendar was the inaugural Playmates at Play calendar and it was shot on the grounds of Playboy Mansion in 2004. It was Playboy's first attempt at creating a non-nude swimsuit calendar featuring Playmates similar in style with those from Sports Illustrated Swimsuit