Lamontia is a genus of calcareous sponges in the family Baeriidae.

It consists of one species, Lamontia zona Kirk, 1895.

[1][2] The genus and species were described by New Zealand biologist Harry Borrer Kirk in 1895.

[1] The type locality of Lamontia zona is Cook Strait, New Zealand.

This article about a calcareous sponge is a stub.