Ricker is a surname. Notable people with the surname include:
Bill Ricker (1908–2001), one of the founders of fisheries science.
Bob Ricker (contemporary), Executive Director of the American Hunters and Shooters Association
Maëlle Ricker (b. 1978), Canadian athlete, 2006 & 2010 Winter Olympics contestant
Nathan Clifford Ricker (1843–1924), American professor and architect