Cañas River

Cañas River may refer to:


 * Cañas River (Mexico)
 * Cañas River (Bebedero River tributary), in Costa Rica and Nicaragua
 * Cañas River (Juana Diaz, Puerto Rico)
 * Cañas River (Mayagüez, Puerto Rico)
 * Cañas River (Naranjito, Puerto Rico)
 * Cañas River (Ponce, Puerto Rico)
 * Cañas River (Sabana Grande, Puerto Rico)
 * Cañas River (Tempisque River tributary)