Schermer  pronunciation (help·info) (West Frisian: Skirmare) is a municipality in the Netherlands, in the province of North Holland. The name came from "skir mere", which means "bright lake" (ref. Groenedijk, 2000).

The municipality of Schermer includes not only the Schermer polder, but also the polders Oterleek, Mijzenpolder, and Eilandspolder.

Around 800 AD, the area that now the municipality of Schermer was covered in peat, and a small river called the Schermer flowed through it. Because of peat-digging by man, and storm floods, this small river had by 1250 developed into an inland lake with an open connection with the Zuyderzee. In the 17th century private investors started draining the largest part of the lake, leaving the southern part, the Alkmaardermeer, intact. In 1635 47.7 km² (18.4 sq mi) of polder was drained, whereupon the land was divided among the shareholders.

The municipality of Schermer consists of the following cities, towns, villages and/or districts: Driehuizen, Grootschermer, Oterleek, Schermerhorn, Stompetoren, Zuidschermer. The latter two are located in the Schermer polder.