Orocrambus apicellus is a moth in the Crambidae family. It was described by Zeller in 1863. It is found in New Zealand, where it has been recorded from the North and South Islands, as well as the Stewart Islands, Chatnam Islands and the Auckland Islands. The habitat consists of swampy areas and wet pastures. The wingspan is 22–26 mm. Adults have been recorded on wing from October to April in two generations per year. The larvae feed on Juncus polyanthemos, Juncus bufonius and possibly Carex species.