| Kashwakamak Lake | |
| Location: | North Frontenac, Frontenac County, Ontario |
| Coords: | 44.8586°N -77.0389°W |
| Pushpin Map: | Ontario |
| Inflow: | Mississippi River from Marble Lake |
| Outflow: | Mississippi River to Mud Lake |
| Basin Countries: | Canada |
| Length: | 15km (09miles) |
| Width: | 0.75km (00.47miles) |
| Area: | 1159.8ha |
| Max-Depth: | 22m (72feet) |
| Elevation: | 260m (850feet) |
Kashwakamak Lake is a freshwater lake in North Frontenac, Frontenac County, Ontario, Canada. It is located east of Cloyne, and southeast of Bon Echo Provincial Park.
The lake is 15km (09miles) long, 0.75km (00.47miles) wide, has a surface area of 1159.8ha with a rocky shoreline and a maximum depth of 22m (72feet), and lies at an elevation of 260m (850feet). The primary inflow and outflow is the Mississippi River, upstream from Marble Lake over the Whitefish Rapids, and downstream, controlled by the Kashwakamak Lake Dam, towards Mud Lake.
This lake is home to a variety of fish species including Largemouth bass, Northern pike, Smallmouth bass, Rock bass, Pumpkinseed, Walleye, and Yellow perch. It is also home to private cottages as well as Aragain Lodge, Fernleigh Lodge, Swing Wright, Twin Oaks Lodge, and Woodcrest Resort Park.
The Ministry of Environment Self Help Program makes it possible along with the Lake Partner Program to provide water quality testing by the Members of the Lake Association volunteers. The Mississippi Valley Conservation Authority has a Watershed Watch Program which provides the comparison of water testing which has taken place since 1976 to present day.
The lake has many camping sites that are available for camping. They must be reserved online due volume throughout the season. There are jumping rocks as well as a rope swing located on the lake for public use. The swing rope is located at the Brown's Bay Narrows and the jumping rocks are located west of the swing rope further down the lake.