Foxaspis (IPA: [fɒksæspɪs]) (meaning "fox shield") is a genus of duyunolepidid galeaspid from the early Devonian (Pragian stage) Xiaoshan Formation in Guangxi, Southern China.

[1] The generic name, "Foxaspis" (IPA: [fɒksæspɪs]), is derived from the English word "fox" and the Greek word "aspis", which roughly translates to "shield", meaning the generic name translates to "fox shield".

It was named as such after the nine-tailed fox, a mythical beast mentioned in the Shanhai jing.

The tail of Tujiaaspis, a closely related galeaspid, lacked these structures and was generally symmetrical.

Galeaspids like Foxaspis and Tujiaaspis were likely relatively fast swimmers compared to other contemporary jawless and jawed fish.