Tianna Hawkins and Alyssa Thomas scored 23 56.
Hawkins added nine rebounds while Lynetta Kizer netted 10 points for Maryland (20-3, 7-3 ACC), which has won two straight following a two-game skid.
Sasha Goodlett scored 15 points to lead Georgia Tech (17-7, 7-4), which had its four-game winning streak snapped.
With the Terrapins holding a 52-44 lead with 6:05 remaining, the Yellow Jackets went on a 10-0 run, capped by Tyaunna Marshall's layup, to give them a 54-52 lead with 3:16 to play.
But the Terps responded with a 10-0 surge of their own as a pair of Thomas free throws gave Maryland a 62-54 lead with 26 seconds left.
Thomas hit a pair of foul shots with four seconds left in the opening half to tie the game at 24 heading into the locker room.