River Ward or Ward 16 (French: Quartier Rivière) is a municipal ward located in Ottawa, Ontario.

It is located in the south central portion of the city, and includes the communities of Carlington, Central Park, Carleton Heights, Mooney's Bay, Riverside Park, and Hunt Club/Uplands.

The ward spans both sides of the Rideau River between Carling Avenue and Hunt Club Road.

Prior to amalgamation, this area was part of Mooney's Bay Ward (Ward 8), which existed from 1994 to 2000.

A by-election was held on April 6, 1999 to replace Karin Howard who resigned her seat.