Chestermere Lake, lake in Alberta, Canada

Chestermere Lake is a man-made reservoir in Chestermere, Alberta, built in the 1880s by the Canadian Pacific Railway for irrigation between Calgary and Strathmore. It covers 2.65 square kilometres, reaches a maximum depth of 7 metres, drains into two irrigation canals and is filled by a canal from the Bow River. The city surrounds it on all sides, the Trans-Canada Highway follows the northeastern shore and the railway passes along the southern shore.

Chestermere Lake was built in the 1880s by the Canadian Pacific Railway to irrigate the land between Calgary and Strathmore. It later became a recreation area, and the City of Chestermere now surrounds it on all sides. The Trans-Canada Highway runs along its northeastern shore, while the railway tracks pass by the southern shore.

The name is redundant: "mere" means lake in English, and "Chester" comes from the Latin for fortress, so "Chestermere Lake" literally reads "Lake Castle Lake". The reservoir is used for swimming, windsurfing, fishing and, in winter, ice skating.

The lake is easy to reach from Calgary and has parking near the main access points. Visit during warm months for swimming and boating, or in winter for ice skating and snowmobiling when conditions are safe for these activities.

Chestermere Lake is fed by a canal from the Bow River near Radisson Heights and drains into two irrigation canals. Its name is redundant: "mere" already means lake in English, while "Chester" derives from the Latin for fortress or castle, so the name literally reads "Castle Lake Lake".