UA, U-A, Ua, uA, or ua may refer to:
The UAAP Season 79 basketball tournaments are held in school year 2016-17. University of Santo Tomas is the season host while Far Eastern University are the defending champions.
The UAAP Season 78 high school volleyball tournament will start on August 22, 2015. The tournament venue will be at the Adamson University Gym in San Marcelino St., Ermita, Manila.
The UAB Blazers football program represents the University of Alabama at Birmingham (UAB) in the sport of American football.
Unmanned aerial vehicles (UAVs) or drones have frequently been involved in military operations. Non-military UAVs have often been reported as causing hazards to aircraft, or to people or property on the ground.