(Photos by Chris Trotman and Nick Laham/Getty Images)
The school announced the pair's decision Wednesday, but says freshman Harrison Barnes "is still reviewing information" as he considers whether to enter the draft.
Zeller, a 7-footer, averaged a team-high 15.7 points to go with 7.2 rebounds. Henson, a lean 6-foot-10 forward, averaged about 12 points and 10 rebounds as the team's top interior defender.
Both were second-team all-ACC picks as the Tar Heels won the league regular-season championship and reached an NCAA regional final.
In a statement, coach Roy Williams says Barnes "is not as far along" in the process.