Tripoli Lake is located within the Lake Superior drainage basin in Algoma District, northeastern Ontario, Canada.

It is about 2.1 kilometres (1.3 mi) long and 0.9 kilometres (0.6 mi) wide and lies at an elevation of 422 metres (1,385 ft).

The Canadian Pacific Railway transcontinental main line passes at the southwest tip of the lake.

The primary inflow is an unnamed creek from West Tripoli Lake, and the primary outflow is an unnamed creek to Tripoli Creek, which flows via the Magpie River into Lake Superior.

This Northern Ontario geographical article is a stub.