Longtown may refer to several places:
in the United Kingdom:
- Longtown, Cumbria, an English town near the Scottish border
- Longtown, Herefordshire, an English linear village and parish
- Longtown, County Antrim, a townland in County Antrim, Northern Ireland
in the United States:
- Longtown, Missouri, a village in Perry County, Missouri
- Longtown, Mississippi, an unincorporated community in Panola County, Mississippi
- Longtown, Ohio, an unincorporated community in Darke County, Ohio
- Longtown, Oklahoma, a census-designated community in Pittsburg County, Oklahoma
- Longtown, South Carolina, an unincorporated community in Fairfield County, South Carolina