Chevy Chase (/ˈtʃɛviː tʃeɪs/) is a census-designated place (CDP) in Montgomery County, Maryland, United States.

[3] Part of a broader area colloquially named Chevy Chase, the CDP is encompasses 2.5 square miles (6.3 km2), all land.

The CDP is bounded on its northern and eastern sides by Rock Creek, a tributary of the Potomac River, and bisected by the Rock Creek tributary of Coquelin Run.

The latter stream was dammed in 1892 to form Chevy Chase Lake and support an eponymous trolley park.

The CDP is home to the Howard Hughes Medical Institute, the second-wealthiest philanthropic organization in the United States.