Maceday Lake /ˈmeɪs.deɪ/ is an all-sports, 234-acre (95 ha) Oakland County, Michigan lake along the Clinton River.

There are mostly high-end luxury homes on the island.

[5] There is a public boat launch on Maceday Lake.

[6] The ten deepest lakes in Oakland County are:[6] Maceday Lake was named for Mason "Mace" Day, who was seen fishing on the lake so often, the residents of the area began referring to the lake as Mace Day Lake.

[7] Fish in Maceday Lake include pumpkinseed sunfish, largemouth bass, walleye, northern pike, splake, rainbow trout, lake trout, and crappie.