Crookshank or Crookshanks is a surname. Notable people with the surname include:
Angus Crookshank (born 1999), Canadian ice hockey player Anne Crookshank (1927–2016), Irish art historian Chichester Crookshank (1868–1958), British Army officer and politician Edgar Crookshank (1858–1928), English physician and microbiologist Eric Crookshank (born 1978), American basketball player Francis Graham Crookshank (1873–1933), British physician and author George Crookshank (1680–1751), Irish politician Harry Crookshank (1893–1961), British politician Henry Crookshank (1893–1972), Irish geologist John Crookshanks (1708–1795), Royal Navy officer Sydney Crookshank (1870–1941), British military engineer
See also Crookshanks, a cat in the Harry Potter series Cruikshank Cruickshank