Mompha terminella is a moth in the family Momphidae found in Europe and North America.

The forewings are orange, sometimes suffused with purple or brown; a black blotch on base of costa, margined with silver-metallic spots; stigmata and a spot above tornus silver-metallic, black-edged, first discal whiter; apex black, preceded on costa by a white spot and on termen by a silver-metallic mark.

The hindwings are dark fuscous.The larva is whitish; dorsal line green; head yellowish brown: in irregular (at first spiral) blotches in leaves of Circaea lutetiana; The imago is seldom observed at large.

[5] The larvae feed on small enchanter's nightshade (Circaea alpina) and enchanter's nightshade (Circaea lutetiana) mining the leaves of their host plant.

[6] It is found from Fennoscandia to the Iberian Peninsula and from Ireland to Romania.