Hempelmann or Hempleman is a surname. Notable people with the surname include:
Alicia Hempleman-Adams (born 1989), British polar traveler David Hempleman-Adams (born 1956), British industrialist and adventurer Henry Valence Hempleman (1922–2006), British researcher Josef Hempelmann (1893–1967), German architect and politician John Hempleman (1933–2019), New Zealand motorcycle road racer Louis Hempelmann (1914–1993), American physician