Middletown er navnet på flere steder:
Storbritannien og Nordirland Middletown (County Armagh) – by i Nordirland Middlestown – by i Wakefield, West Yorkshire, England (med -s- i midten) Middletown (Powys) – landsby i Powys, Wales
USA Middletown (Californien) – bebyggelse i Californien Middletown (San Diego) – bydel i San Diego, Californien Middletown (Connecticut) – by i Connecticut Middletown (Delaware) – by i Delaware Middletown (Illinois) – by i Illinois Middletown (Indiana) – by i Indiana Middletown (Allen County, Indiana) – by i Allen County, Indiana Middletown (Shelby County, Indiana) – by i Shelby County, Indiana Prairie Creek (Indiana) – by i Indiana som også kaldes Middletown Middletown (Iowa) – by i Iowa Middletown (Kentucky) – by i Kentucky Middletown (Maryland) – by i Maryland Middletown (Michigan) – by i Michigan Middletown (Missouri) – by i Missouri Middletown Township (New Jersey) – kommune i New Jersey Middletown (New York) – flere steder i New York (flertydig) Middletown (Ohio) – by i Butler County, Ohio Middletown (Champaign County, Ohio) – by i Champaign County, Ohio Middletown (Crawford County, Ohio) – by i Crawford County, Ohio Middletown (Dauphin County, Pennsylvania) – by i Dauphin County, Pennsylvania Middletown (Northampton County, Pennsylvania) – by i Northampton County, Pennsylvania Middletown (Rhode Island) – by i Rhode Island Middletown (Virginia) – by i Virginia Middletown Township – flere steder (flertydig)