Franklin County may refer to:
Australia
- Franklin County, New South Wales
- the former name of Franklin Land District, Tasmania
New Zealand
- Franklin County, New Zealand
United States
- Franklin County, Alabama
- Franklin County, Arkansas
- Franklin County, Florida
- Franklin County, Georgia
- Franklin County, Idaho
- Franklin County, Illinois
- Franklin County, Indiana
- Franklin County, Iowa
- Franklin County, Kansas
- Franklin County, Kentucky
- Franklin County, Maine
- Franklin County, Massachusetts
- Franklin County, Mississippi
- Franklin County, Missouri
- Franklin County, Nebraska
- Franklin County, New York
- Franklin County, North Carolina
- Franklin County, Ohio
- Franklin County, Pennsylvania
- Franklin County, Tennessee
- Franklin County, Texas
- Franklin County, Vermont
- Franklin County, Virginia
- Franklin County, Washington
See also
- Franklin (disambiguation)
- Franklin Parish, Louisiana