See text Cistothorus is a genus of small passerine birds in the family Troglodytidae.

The genus Cistothorus was circumscribed by the German ornithologist Jean Cabanis in 1850.

[1][2][a] The type species is the sedge wren (Cistothorus stellaris).

[3][4] The genus contains five species:[2] The sedge wren and the grass wren were formerly treated as conspecific.

They were split based on the results of a molecular phylogenetic study published in 2014.