Hoffeinsomyia is an extinct genus of small-headed flies in the family Acroceridae.

It is known from Baltic amber from the Eocene of Kaliningrad Oblast, Russia.

[1] The genus is named in honor of Christel and Hans Werner Hoffeins.

The specific name is said to be a combination of the Greek words lepto (slender) and gaster (abdomen).

[2] This article related to members of the fly superfamily Nemestrinoidea is a stub.