Looking forward to sending our 14 Galaxy team to AAU Nationals this Summer Katy, TX | Volleyball | Passion | Youth Sports | Raising the Standards What is AAU Nationals? AAU Volleyball Nationals is an annual national tournament that showcases the best amateur volleyball players in the United States. It is organized by the Amateur Athletic Union (AAU), a non-profit organization dedicated to promoting and developing amateur sports programs for athletes of all ages. AAU Volleybal