Middlesex is the name of a county in England, several places in the United States of America, and a county in Canada:
- Middlesex, England
- Middlesex, New Jersey, United States of America
- Middlesex, New York, United States of America
- Middlesex, North Carolina, United States of America
- Middlesex, Vermont, United States of America
- Middlesex, Virginia, United States of America
- Middlesex County, Massachusetts, United States of America
- Middlesex County, New Jersey, United States of America
- Middlesex Township, Pennsylvania, United States of America
- Middlesex County, Ontario, Canada
For other places with Middle in their name, see: This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.