| Frank Messersmith | |
| Term Start: | 1980 |
| Term End: | 1990 |
| Birth Date: | 5 October 1942 |
| Birth Place: | Springfield, Illinois, U.S. |
| Party: | Republican |
| Occupation: | attorney, lobbyist |
| Residence: | Lake Worth Beach, Florida |
| Alma Mater: | Southern Illinois University |
Frank S. Messersmith (born October 5, 1942) is an American politician in the state of Florida.
Messersmith was born in Springfield, Illinois.[1] An attorney, he served in the Florida House of Representatives for the 85th district from 1980 to 1990, as a Republican.[2]