Whiteside is a Scottish surname. Notable people with the surname include:
Abby Whiteside (1881-1956), founder of the piano method ‘The Whiteside Technique’Alan Whiteside (born 1956), HIV/AIDS researcher and authorBernard Whiteside (born 1954), British diplomatChase Whiteside (born 1988), journalist and documentary filmmakerDerek Thomas Whiteside (1932-2008), historian of Mathematics with particular interest in the work of Isaac NewtonEli Whiteside (born 1979), American baseball playerHassan Whiteside (born 1989), American basketball playerJames Anderson Whiteside (1803-1861) attorney, Chattanooga railroad promoter and land investorKen Whiteside (born 1929), English professional footballerNinian E. Whiteside, first Speaker of the Wisconsin State AssemblyNorman Whiteside (born 1965), former Northern Irish football player, played for Manchester United and EvertonSamuel Whiteside (1783-1868), Illinois Militia and Politician