Cockcroft or Cockroft is a surname. Notable people with the surname include:
Cockcroft:
Barry Cockcroft (1933–2001), British television documentary director
Barry Cockcroft (dentist), Chief Dental Officer (CDO) for England
Bill Cockcroft, former Chief Scout Commissioner of England
Colin Cockcroft (1918–1987), South African military commander
Donald William Cockcroft (1946–), Canadian asthmologist; see Cockcroft-Gault formula
George Cockcroft (born 1932), U.S. novelist who published under the name "Luke Rhinehart"
Sir John Douglas Cockcroft (1897–1967), British nuclear physicist
The Cockcroft Institute, a UK research centre for accelerator physics named after Sir John D. Cockcroft
Cockcroft, a lunar crater named after Sir John D. Cockcroft
John Hoyle Cockcroft (born 1934), British Conservative politician
Wilfred Cockcroft (1923–1999), English mathematician
Cockroft:
Don Cockroft American football player
Hannah Cockroft (born 1992), British athlete, won Paralympics gold medal
Joe Cockroft English footballer
Lana Coc-Kroft New Zealand television personality
Peter Cockroft British weather forecaster
