On May 28, 2019, Hauser committed to continue his career at Virginia and sat out the next season due to National Collegiate Athletic Association (NCAA) transfer rules. In his debut for Virginia on November 25, 2020, he scored 19 points in an 89–54 win against Towson. As a senior, he averaged 16 points, 6.8 rebounds and 1.8 assists per game. On March 25, 2021, Hauser announced that he would declare for the 2021 NBA draft, ending his short tenure as a Cavalier.
