Sidney Harris

Sidney or Sydney Harris may refer to:


 * Sid Harris (1906–1965), Australian rugby league footballer
 * Sidney Harris (cartoonist) (born 1933), American science cartoonist
 * Sydney Harris (judge) (1917–2009), Canadian judge and civil rights activist
 * Sydney J. Harris, (1917–1986), American journalist
 * Sir Sidney Harris, president of the British Board of Film Classification 1948–1960
 * Sidney Harris, a fictional character in the Honorverse novels by David Weber