Xestogaster is a South American genus of broad-nosed weevils in the family Curculionidae.

[1] The genus was described by Sir Guy A. K. Marshall in 1922 (p. 221).

[2] Xestogaster contains four described species:[3] Members of the genus Xestogaster are similar to members of the genera Exorides and Compsus.

According to Marshall: The members of this genus can be distinguished from all their allies by the mesosternal tubercle and the highly polished venter.The genus Xestogaster is distributed in Brazil, Colombia, and Peru.

[1][3]