Tamba is a genus of moths in the family Erebidae. It was erected by Francis Walker in 1869.

The genus has previously been classified in the Catocalinae or Calpinae subfamilies of the Erebidae or Noctuidae families.

This is a large but morphologically uniform genus of rather delicate erebid moths with distinctively patterned wings, the hindwings usually having most elements of the forewing pattern. The ground color of the wings is usually pale fawn or grayish, and the forewing postmedial line is usually angled or curved round the discal area, though its more posterior oblique section may be continued by one of its components towards the apex. The male antennae are ciliate, and the legs are often tufted with scale crests and hair pencils. The labial palps are typical for catocalines.