Franklin Johnson Foil (born October 31, 1964) is a Republican member of the Louisiana State Senate for the 16th district, serving since 2020.

As a high school student, he was a member of the National Honor Society and earned varsity letters in football, track, tennis, and cross country.

He has been inducted into the Louisiana State University Cadets of the Ole War Skule Hall of Honor and is the recipient of the Rear Admiral Hugh Howell Award of Excellence for Outstanding Senior Officer.

Upon his retirement from the US Navy in 2021, he was awarded the Legion of Merit Award by the President of the United States for "superior performance of duties culminated during his thirty years of honorable and dedicated military service".

In 2018, Foil passed legislation to establish a tax-free savings account for tuition for K-12 education.