Yuliana Pérez Martinéz (born July 21, 1981 in Tucson, Arizona) is an American triple jumper of Cuban heritage. Holding a dual citizenship to compete internationally, she attained two U.S. outdoor championship titles (2002 and 2003) in the triple jump, picked up a silver medal at the 2003 Pan American Games in Santo Domingo, Dominican Republic, and finished twenty-eighth at the 2004 Summer Olympics. During her track and field career, Perez has acquired a personal best of 14.23 m (46 ft 8 in) and 13.80 m (45 ft 3+1⁄4 in) each in the outdoors and indoors, respectively.