Hill's departure has been expected for weeks, but it didn't become official until the school released a brief statement Friday. Underclassmen have until Saturday to declare for the draft.
Hill started 10 games in 2010, finishing with 54 tackles and two interceptions. The junior was suspended the first two games of the season for an undisclosed violation of team rules. He struggled for much of the year after returning.
He leaves Florida with 144 tackles, four interceptions and two sacks.
New coach Will Muschamp wished Hill luck and urged him to finish his degree.
Copyright 2011 by The Associated Press