Little Seneca Lake is a reservoir located near the Boyds community in Montgomery County, Maryland.

[3] The lake was created by the construction of a dam on Little Seneca Creek.

[4] The lake was completed in 1984 and the water supply dam is operated by the Washington Suburban Sanitary Commission (WSSC).

[5][6] The lake is located in Black Hill Regional Park.

Fish species found in the lake include largemouth bass, tiger muskie, channel catfish, sunfish, perch and crappie.