Cistothorus is a genus of birds in the Troglodytidae family.

It contains the following species:

• Apolinar's Wren, Cistothorus apolinari
• Mérida Wren, Cistothorus meridae
• Marsh Wren or Long-billed Marsh Wren, Cistothorus palustris
• Sedge Wren, Short-billed Marsh Wren or Grass Wren, Cistothorus platensis