The incident was reported around 3 p.m. in an area of the lake known as Skinny Dip Cove, located near the Windstar Bay Subdivision, just off Walton Ferry Road.
Officials with the Tennessee Wildlife Resources Agency said Regan Jewett, of Nashville, was on a foam mat in the water and attempted to climb onto a jetski, when it somehow rolled over on top of him.
His body was recovered around 4:15 p.m. They said he was found not wearing a life jacket.
Multiple agencies from the area responded to the scene, including the Hendersonville Fire Department, TWRA, Sumner Emergency Management Agency and the Wilson Emergency Management Agency.
It was not immediately known whether or not alcohol was a factor in the incident.