Xenachoffatia is a small Jurassic mammal from Portugal.

It was a relatively early member of the also extinct order of Multituberculata.

It lived during "the age of the dinosaurs" and belongs to the suborder Plagiaulacida, family Paulchoffatiidae.

The primary species Xenachoffatia oinopion (Hahn & Hahn, 1998) was found in Kimmeridgian (Upper Jurassic) Camadas de Guimarota of Guimarota, Portugal.

This article about a Jurassic mammal is a stub.