Robert Buck may refer to:
Robert N. Buck (1914–2007), American aviator Robert Otis Buck, model for Norman Rockwell's Willie Gillis World War II series Rob Buck (1958–2000), musician with 10,000 Maniacs Bob Buck (sportscaster) (1938–1996), American sportscaster Bob Buck (bushman), Australian pastoralist, bushman and drover Robbie Buck (born 1973), Australian radio announcer Robert Creighton Buck (1920–1998), mathematician Robert Sidney Buck (1884–1960), international footballer for Argentina and Uruguay