Howard was accused in April 2009 of punching and kicking a customer at a bar where he was working as a bouncer. He entered the plea Monday to a charge of simple assault.
Howard's lawyer, Mark Smith, said Tuesday that the plea does not constitute a conviction and that the charge will be expunged from Howard's record if he stays out of trouble for a year.
Smith says Howard wanted to get the case behind him and move on with his life.
The Titans selected Howard in the seventh round.