Thomas Rhett most commonly refers to:
- Thomas Rhett (born Thomas Rhett Akins Jr., 1990), American country music singer-songwriter
Thomas Rhett may also refer to:
- Rhett Akins (born Thomas Rhett Akins, 1969), American country music singer-songwriter and father of Thomas Rhett
- Thomas Grimke Rhett (1821-1878), United States Army officer who served in the Mexican-American War and American Civil War
- Thomas Rhett Smith (1768-1829), 21st mayor of Charleston, South Carolina, United States
- Thomas Rhett (EP), 2012 self-titled debut extended play by country musician Thomas Rhett Akins Jr.