The Guder is a river of central Ethiopia. It is a tributary of the Abay or Blue Nile on the left side; tributaries of the Guder include the Dabissa and the Taranta. The Guder River has a drainage area about 7,011 square kilometers in size.
A Greek resident built the first bridge over the Guder in 1897.
- "Tana & Beles Integrated Water Resources Development: Project Appraisal Document (PAD), Vol.1", World Bank, 2 May 2008 (accessed 5 May 2009)
- Richard Pankhurst, Economic History of Ethiopia (Addis Ababa: Haile Selassie University, 1968), p. 299