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 author
Bernard Whiteside (born 1954), British diplomat
Chase Whiteside (born 1988), journalist and documentary filmmaker
Derek Thomas Whiteside (1932-2008), historian of Mathematics with particular interest in the work of Isaac Newton
Eli Whiteside (born 1979), American baseball player
Hassan Whiteside (born 1989), American basketball player
James Anderson Whiteside (1803-1861) attorney, Chattanooga railroad promoter and land investor
Ken Whiteside (born 1929), English professional footballer
Ninian E. Whiteside, first Speaker of the Wisconsin State Assembly
Norman Whiteside (born 1965), former Northern Irish football player, played for Manchester United and Everton
Samuel Whiteside (1783-1868), Illinois Militia and Politician
