Middlesex (disambiguation)
- Middlesex
- Middlesex (1783 EIC ship)
- Middlesex (UK Parliament constituency)
- Middlesex (novel)
- Middlesex Canal
- Middlesex Centre
- Middlesex County Cricket Club
- Middlesex County, Connecticut
- Middlesex County, Jamaica
- Middlesex County, Massachusetts
- Middlesex County, New Jersey
- Middlesex County, Ontario
- Middlesex County, Virginia
- Middlesex Guildhall
- Middlesex Middle School
- Middlesex Plat Historic District
- Middlesex School
- Middlesex Township, Butler County, Pennsylvania
- Middlesex Township, Cumberland County, Pennsylvania
- Middlesex University
- Middlesex, New Jersey
- Middlesex, New York
- Middlesex, North Carolina
- Middlesex, Tasmania
- Middlesex, Vermont
- Middlesex, Virginia
- Middlesex, Western Australia
- North Middlesex University Hospital
- North Middlesex, Ontario
- Southwest Middlesex, Ontario
- Stann Creek District
- West Middlesex University Hospital
- West Middlesex, Pennsylvania