The 6-foot-2 guard started 33 games and averaged 9.7 points last season as Northeastern won 23 games and lost to Kansas in the NCAA tournament. Gresham will add experience to Georgia's highly regarded recruiting class.
The addition of Gresham, announced by coach Tom Crean on Thursday, comes one day after Georgia signed point guard Sahvir Wheeler from Houston. Wheeler is the fifth top-100 signee of a recruiting class headed by Anthony Edwards, a 6-foot-5 guard from Atlanta.
Gresham started 59 of 67 games the last two seasons.