Posted by Gilbert Sam on 12:51 PM
Johnson (6-foot-1, 190 pounds) had offers from Arkansas, Colorado State, Louisiana Tech, Nebraska, Texas Tech and Washington State.
Related: The latest on Oklahoma football recruiting.
He is ranked as the No. 31 cornerback in the country by Rivals.com, which first reported the commitment.
Johnson picked up the offer from OU in early October during a visit to Norman. (The Oklahoman)