Orocrambus cultus is a moth in the family Crambidae.

[1] It was first described by Alfred Philpott in 1917[2] from specimens collected by Merlin Owen Pasco.

[3] It is endemic to New Zealand,[4] where it is known from Cecil Peak.

The forewings are deep yellowish brown with dusky black markings on the costa and dorsum.

Adults have been recorded on wing in January.