Haycock is a surname. Notable people with the surname include:
Alexander Haycock (1882–1970), British politician
D. Arthur Haycock (1916–1994), American secretary with the LDS Church
David Boyd Haycock (born 1968), British writer
Fred Haycock (1886–1955), English footballer
Joseph Longford Haycock (1850–1937), Canadian farmer and politician
Myfanwy Haycock (1913–1963), Welsh poet
Obed Crosby Haycock (1901–1983), American scientist
Pete Haycock (born 1951), English musician
