Chevy Chase is the colloquial name of an area that includes a town, several incorporated villages, and an unincorporated census-designated place in southern Montgomery County, Maryland; and one adjoining neighborhood in northwest Washington, D.C. Most of these derive from a late-19th-century effort to create a new suburb that its developer dubbed Chevy Chase after a colonial land patent.

Coquelin Run is a tributary of Rock Creek in Montgomery County, Maryland. It rises in the Town of Chevy Chase, runs for about two miles while draining an area of 1,095 acres, and debouches in Rock Creek in unincorporated Chevy Chase.