Grainge is a surname. Notable people with the surname include:
Leslie Grainge (1910–1983), British professional rugby league footballer Lucian Grainge (born 1960), British music industry executive Nigel Grainge (1946–2017), British music industry executive Thomas John Grainge (1865-1944), British organist and composer William Grainge (1818–1895), British antiquarian, poet and local historian