蟾头龟属（Phrynops）是蛇颈龟科下的一个属。

蟾头龟属的龟广泛分布于南美洲各地，包括哥伦比亚、委内瑞拉、圭亚那、巴西、巴拉圭、乌拉圭和阿根廷东北部。

该属下有4种：

Sometimes called the bearded toadheads but better known by their scientific name of Phrynops this genus of turtles has often been a bit of a dumping ground for the short-necked South American turtles of the family Chelidae.

The genus is widely distributed in South America found in the Orinoco to Amazon and São Francisco to Paraná and adjacent river basins of Colombia, Venezuela, the Guianas, Brazil, Paraguay, Uruguay and northeastern Argentina (Iverson, 1992).