Limnae or Limnai (Ancient Greek: Λίμναι) was a settlement that existed before the Dorian conquest. It was united with three other such settlements (Mesoa, Pitane, and Cynosura) by a common sacrifice to Artemis, and eventually coalesced into ancient Sparta. Limnae was situated upon the Eurotas, having derived its name from the marshy ground which once existed there; and as the Dromus occupied a great part of the lower level towards the southern extremity, it is probable that Limnae occupied the northern.

Its site is unlocated.

 This article incorporates text from a publication now in the public domain: Smith, William, ed. (1854–1857). "Sparta". Dictionary of Greek and Roman Geography. London: John Murray.