Limu or Limmu may refer to:
In the Polynesian mythology of Tonga, Limu is the primeval Tongan god of creation, whose union with the goddess Kele produced the goddess Touiafutuna, from whom all creation descends.
Limu is an island in Tonga. It is located within the Ha'apai Group in the centre of the country, to northeast of the national capital of Nukuʻalofa.
Coordinates: 20°1′15″S 174°27′30″W / 20.02083°S 174.45833°W / -20.02083; -174.45833