Triplett is a surname. Notable people with the surname include:
Kirk Triplett, golfer
Nathan Triplett, American football player
Norman Triplett, social psychologist
Sally Ann Triplett, British singer and actress
Samuel Triplett, Medal of Honor recipient
Skip Triplett, CEO of Kwantlen University College in Vancouver
Wallace Triplett, American football player
William Harrison Triplett (1836-1890)