Nihill is a surname. Some notable people with the surname are:
John Nihill (1850–1908), Irish-born soldier in the U.S. Army Julie Nihill (born 1957), Australian actress Paul Nihill (1939–2020), British race walker Philippa Nihill, bass player for the Underground Lovers Torsten Nihill, drummer for Omega Lithium Dave Nihill, Irish comedian