UA, U-A, Ua, uA, or ua may refer to:
The UAAP Season 81 volleyball tournaments started on October 31, 2018 with the junior tournaments. The games were played at the Filoil Flying V Centre, Mall of Asia Arena, Smart Araneta Coliseum and the Blue Eagle Gym.
The UAAP Season 80 volleyball tournaments started on September 9, 2017 with the junior tournaments. The games were played at the Filoil Flying V Centre, Mall of Asia Arena, Smart Araneta Coliseum and the Blue Eagle Gym.
The UAAP Season 78 high school volleyball tournament started on August 22, 2015. The tournament venue is the Adamson University Gym in San Marcelino St., Ermita, Manila.
The UAE Pro-League, known for sponsorship reasons as the Arabian Gulf League, is the top professional football league in the United Arab Emirates (UAE).
The UAAP Season 80 seniors division football tournament started on February 3, 2018, with the Women's tournament at the Rizal Memorial Stadium in Manila.