Smithton may refer to several places:
;In the United Kingdom:
- Smithton, Highland, a community near Culloden in Scotland.
;In Australia:
- Smithton, Tasmania
;In the United States:
- Smithton, Illinois
- Smithton Township, St. Clair County, Illinois
- Smithton, Missouri
- Smithton Township, Pettis County, Missouri
- Smithton, Pennsylvania
- Smithville, West Virginia, also known as Smithton
- Smithton High School, a high school in Smithton Missouri