Hanna, who was an All-Big 12 second team selection by both the AP and coaches, set career bests in receptions (27) and yards (381) in a season last year.
He averaged 14.1 yards per reception and caught a pair of touchdowns.
The 6-foot-4, 252-pounder had at least one reception in every game with eight multiple-catch outings.
Additionally, he matched a career-high with four receptions in OU's dramatic 41-38 loss at Baylor.
Hanna's career defining moment came back during the 2010 season when he caught a 76-yard touchdown pass to seal up the Bedlam game against Oklahoma State, and he also hauled in his career-high four catches that night.