Mto Muger (pia: Muger) ni tawimto la mto Abay ambao unaungana nao katika majiranukta 9|55|07|N|37|55|50|E, katikati ya Ethiopia. Kati ya mito inayouchangia kuna mto Labbu. Beseni lake lote lina eneo la kilometa mraba 8,188. Orodha ya mito ya Ethiopia "Tana & Beles Integrated Water Resources Development: Project Appraisal Document (PAD), Vol.1", World Bank, 2 May 2008 (accessed 5 May 2009)