|Location||Big Lakes County / Smoky River No. 130, Alberta|
|Primary outflows||South Heart River|
|Catchment area||221 km2 (85 sq mi)|
|Max. length||14 km (8.7 mi)|
|Max. width||6 km (3.7 mi)|
|Average depth||1.7 m (5 ft 7 in)|
|Max. depth||4.7 m (15 ft)|
|Surface elevation||621 m (2,037 ft)|
Winagami Lake (//) is a large and shallow lake in northern Alberta, Canada. It is located in Big Lakes County and Municipal District of Smoky River No. 130, northeast of the junction of Highway 2 and Highway 679. It lies in the hydrographic basin of the Athabasca River.
Winagami Lake Provincial Park is located on the western, southern and eastern shores of the lake.