Minicrania ("small skull") is an extinct genus of tiny antiarch fish, with armor averaging up to about 2 centimetres (0.79 in) long, which lived during the Lochkovian epoch in Early Devonian Yunnan Province, China and northern Vietnam.

Anatomically, Minicrania bears a strong resemblance to the Yunnanolepiformids (i.e., Yunnanolepis and Chuchinolepis).

The type species, M. lirouyii, is found in Lochkovian-aged strata in Qujing, Yunnan, and is characterized by the presence of numerous tubercles covering the dermal surface of the armor.

The specific name honors a Mr. Li Rou-yi, who assisted in collecting the first specimens.

The second species, M. lissa,[1] is found in Lochkovian deposits in northern Vietnam, near the Chinese border.