Mahan or Mahaan may refer to:
Mahan (name)
Mahan confederacy, chiefdoms in ancient Korea
Mahan, Iran, a city in Kerman Province
Mahan District, an administrative subdivision of Kerman Province
Mahan Rural District, an administrative subdivision of Kerman Province
Mahan, Hamadan, a village in Hamadan Province, Iran
Mahan, Missouri, a community in the United States
Mahan Air, an airline based in Kerman province
Mahan Island, the conjoined Lanzarote and Fuerteventura in Canary Islands prehistory
Master Mahan, a title of uncertain meaning, applied to Cain and his descendant Lamech in the Book of Moses
Mahan (horse)
Mahaan (1983 film), an Indian Hindi-language film
Mahaan (1992 film), a 1992 Indian Malayalam-language film
Mahaan (2022 film), an Indian Tamil-language film