Justin Geisinger (born May 24, 1982) is an American former professional football guard.
He was selected by the Buffalo Bills in the sixth round of the 2005 NFL draft.
At Vanderbilt, he was a four-year starter at left tackle, a two-year captain, and an all-SEC selection and Outland Trophy nominee in his senior year.
He was named a strength all-American for benching 600 pounds in his final year at Vanderbilt, an SEC record at the time.
He is now the head football coach at Franklin Road Academy in Nashville, beginning with the 2022 season.