Aatreya may refer to:

  • Acharya Aatreya (1921–1989), playwright, lyric writer and story writer in Telugu cinema
  • Atreya (Devanagari:आत्रेय), ancient Rishi descended from Atri
  • Atreya (surname), Indo-Nepalese Hindu patronymic surname
  • Dattatreya, a Hindu deity encompassing the trinity of Brahma, Vishnu and Shiva