Knibbs is a surname. Notable people with the surname include:
Bill Knibbs (1942–2006), Canadian ice hockey player Darrel Knibbs (born 1949), Canadian ice hockey player George Handley Knibbs (1858–1929), Australian scientist and statistician J. W. Knibbs (1880–1953), American football player Ralph Knibbs (born 1964), English rugby player Thomas Knibbs, English footballer