Middlesex (disambiguation)

Middlesex is a former county in southeast England.

It may also refer to:

Canada

 * Middlesex County, Ontario

United States

 * Middlesex, New York
 * Middlesex, Vermont
 * Middlesex, Vermont
 * Middlesex, Vermont

A County

 * Middlesex County, Connecticut
 * Middlesex County, Massachusetts
 * Middlesex County, New Jersey
 * Middlesex County, Virginia