Nayan may refer to:

• Nayan (Mongol prince), 13th century prince of the Mongol Empire
• Nayanthara (born 1984), or Nayan, Indian actress
• Nayan Chanda (born 1946), Indian magazine editor
• Nayan Desai (born 1946), Indian poet
• Nayan Doshi (born 1978), British cricketer
• Nayan Ghosh (born 1956), Indian musician
• Nayan Mongia (born 1969), Indian cricketer
• Nayan Padrai (born 1975), Indian screenwriter, producer, and director
• Nayan Shah, American professor

• Naina (disambiguation)
• Nainar (disambiguation)
• Nayanar (disambiguation)
• Nayana (film), a 2014 Indian film