Nail or Nails is a surname. Notable people with the surname include:
Bethanie Nail (born 1956), Australian retired runner Bobby Nail (1925–1995), American bridge player David Nail (born 1979), American country music singer-songwriter Jimmy Nail (born 1954), English actor and singer John E. Nail (1883–1947), African-American real estate agent Debra Nails (born 1950), American philosophy professor and classics scholar Jamie Nails (born 1977), American former National Football League player
See also Bernard Le Nail (1946–2010), French writer and Breton militant