Bonnie Lake is a small lake in Alberta, Canada. It is located 6 km (3.7 mi) outside of Vilna, Alberta, north of Highway 28, and is part of the North Saskatchewan River basin.

The lake has a surface of 3.77 km (1.46 sq mi) and reaches a maximum depth of 6.1 m (20 ft), while the average depth is 3.1 m (10 ft). Bonnie Lake drains a total area of 49.6 km (19.2 sq mi). The lake drains through its south shore into Stony Creek which empties into the North Saskatchewan River.