The Mendenhall River (Lingít: Woosh Ilʼóox̱ʼu Héen) is an Alaskan river north of Juneau in the Mendenhall Valley.
The most favorable months in which to raft on the river is May through September.
The most active points along the whitewater section are Scott's Iatola (or Iatolla) Hola, Tourist Trap, and Pinball Alley.
The whitewater ends near the Juneau International Airport.
If the Mendenhall is at minor flood stage, however, it is likely that areas such as Montana Creek, Jordan Creek, and the Mendenhall Lake are also experiencing flooding at that time.