Ophion is a genus of ichneumonid wasps, which are nocturnal, parasitic, and often seen at lights.

They are mostly orange to yellow in colour and are endoparasites of insect larvae, particularly Lepidoptera.

They have a worldwide distribution but the majority of species are found in the temperate zone.

The genus Ophion is distinguished by the absence of a transverse keel on the hind mesosternum.

[1] They are within the same tribe as Afrophion, Alophophion, Xylophion, Sclerophion, and Rhopalophion.