- Corobici River (in the Guanacaste region)
- Naranjo River (in the Central Pacific region)
- Pacuare River (in the South Central region)
- Penas Blancas River (in the Northern Lowlands region)
- Reventazon River (in the Central Highlands region)
- Rio Frio (in the Northern Lowlands region)
- Sarapiqui River (in the Northern Lowlands region)
- Savegre River (in the Central Pacific region)
- Tempesque River (in the Guanacaste region)
- Toro River (in the Northern Lowlands region)

