Orocrambus vittellus is a moth in the Crambidae family. It was described by Doubleday in 1843. It is found in New Zealand, where it has been recorded from the North and South Island, as well as the Stewart Islands. The habitat consists of grasslands. The wingspan is 19–28 mm. Adults have been recorded on wing from November to April. The larvae feed on Agrostis tenuis and probably other grasses.