Helliwell is a surname. Notable people with the surname include:
David Helliwell (born 1935), Canadian rowerIan Helliwell (filmmaker), audio visual artist based in Brighton, EnglandIan Helliwell (footballer) (born 1962), English former footballer who played as a strikerJohn Helliwell (born 1945), English musician: saxophonist, keyboardist and woodwind player for the rock band SupertrampLuke Helliwell (born 1988), rugby league player for the York City KnightsRobert Helliwell (1920–2011), electrical engineer and professor at Stanford UniversitySid Helliwell (1904–1939), professional footballerWade Helliwell (born 1978), Australian professional basketball player