Ahlberg or Åhlberg may refer to:
- Alf Ahlberg (1892-1979), Swedish writer, humanist and philosopher
- Bruno Ahlberg (1911-1966), Finnish boxer
- Flemming Ahlberg (born 1946), Danish footballer
- Gillis Ahlberg (1892-1930), Swedish rower
- Hakon Ahlberg (1891-1984), Swedish architect, editor and author
- Janet and Allan Ahlberg, British children's writers
- Mac Ahlberg (born 1931), Swedish film director and cinematographer
- Mats Åhlberg (born 1947), Swedish ice hockey player
- Per E. Ahlberg, Swedish vertebrate palaentologist
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