Limnaea or Limnaia () may refer to: Limnaea (Acarnania), a town of ancient Acarnania, Greece Limnaea (Thessaly), a town of ancient Thessaly, Greece Limnaea, a genus of snails in the family Lymnaeidae, synonym of Lymnaea Limnaea, a genus of bivalves in the family Unionidae, synonym of Unio
See also Limnae (disambiguation)