Risoba is a genus of moths of the family Nolidae erected by Frederic Moore in 1881.

Its palpi are upturned and reach the vertex of the head.

Antennae almost as long as forewing, with fasciculated (bundled) cilia in male.

Retinaculum of male bar shaped and claspers long and elongate.

This article on a moth of the family Nolidae is a stub.