The Shenley River (in French: rivière Shenley) is a tributary of the west bank of the Chaudière River at Saint-Martin which flows northward to empty on the shore south of the St. Lawrence River. It flows in the municipalities of Saint-Honoré-de-Shenley and Saint-Martin, in the Beauce-Sartigan Regional County Municipality, in the administrative region of Chaudière-Appalaches, in Quebec, in Canada.

The main neighboring watersheds of the Shenley River are:

• north side: Roy brook, Dutil brook, Pozer River, Chaudière River
• east side: Chaudière River
• south side: rivière de la Grande Coudée, Petit Portage River;
• west side: Toinon River, Le Petit Shenley, Bras Saint-Victor.

The Shenley River originates from several tributaries that drain the area south of Vaseux Lake, northeast of the village of Saint-Honoré-de-Shenley. Its source is located 3.6 kilometres (2.2 mi) northeast of the center of the village of Saint-Honoré-de-Shenley 2.5 kilometres (1.6 mi) north of route 269 and south of the center of the village of Saint-Benoît-Labre.

From its source, the Shenley River flows over 12.3 kilometres (7.6 mi) divided into the following segments:

• 0.3 kilometres (0.19 mi) towards the south-east, up to the 4th Rang Nord that it intersects at 2.4 kilometres (1.5 mi) north of route 269;
• 3.5 kilometres (2.2 mi) south-east, to an old country road, which it cuts at 0.9 kilometres (0.56 mi) south of route 269;
• 3.9 kilometres (2.4 mi) southeasterly, to the 2nd Rang de Shenley North;
• 4.6 kilometres (2.9 mi) southeasterly, crossing route 269 and 4th rue West, to its confluence.

The Shenley River empties on the west bank of the Chaudière River at Saint-Martin. Its confluence is 1.4 kilometres (0.87 mi) upstream from the bridge in the village of Saint-Martin and downstream from the village of Saint-Gédéon-de-Beauce.

The toponym "Shenley River" was formalized on December 5, 1968 at the Commission de toponymie du Québec.

• List of rivers of Quebec