Leptochilus is a large, mostly Holarctic genus of small sized potter wasps. The genus reaches its largest diversity in the Palearctic where there are more than 135 species belonging to 5 subgenera. However the division of The division of Leptochilus into subgenera can not be fully supported and the status of some of them is dubious.
The following list sets out some of the species included in Leptichilus: