The roof of fourth ventricle is the dorsal surface of the [[fourth ventricle]].

It corresponds to the ventral surface of the cerebellum.

The upper portion of the roof is formed by the [[cerebellum]]. The roof of ventricle is diamond shaped and can be divided into superior and inferior parts. The superior part or cranial part is formed by [[superior cerebellar peduncle]]s and [[superior medullary velum]].