Heer is a surname. Notable people with the surname include:
Alfred Heer (1961–2025), Swiss politician Ewald Heer (1930–2025), American aerospace engineer, author and academic Jeet Heer, Indo-Canadian author and journalist Jeffrey Heer (born 1979), American computer scientist and entrepreneur Kamal Heer (born 1973), Indian singer and musician of Punjabi music Oswald Heer (1809–1883), Swiss botanist and naturalist with the standard botanical author abbreviation Heer Manmohan Waris or Manmohan Heer (born 1967), Indian singer and musician of Punjabi music Sangtar or Sangtar Heer (born 1973), Indian composer and musician of Punjabi music