Davis, a 5-foot-11 post player who was the Big 12's top freshman last season, leads the league with 20.7 points a game and is fourth with 8.6 rebounds a game.
The Big 12 honors announced Wednesday were chosen by the league's head coaches.
Baylor just won its fifth consecutive Big 12 regular-season title and sixth overall. The Lady Bears have won the last four conference tournaments.
Two Oklahoma guards got individual awards, Gabbi Ortiz as top freshman and sophomore transfer Peyton Little as top newcomer. TCU's Chelsea Prince was named the league's top defensive player and Baylor's Khadijiah Cave got the sixth-man award.