Hayhoe is a surname. Notable people with the surname include:
Barney Hayhoe, Baron Hayhoe (1925-2013), British politician Bill Hayhoe (born 1946), American football player Brock Hayhoe (born 1986), Canadian ballet dancer and drag queen Katharine Hayhoe (born 1972), American atmospheric scientist Simon Hayhoe (born 1969), British educationist Tom Hayhoe (born 1956), English official George Hayhoe, engineer at Mercer University Alfred Hayhoe, British racehorse trainer