Hazzard, who played three seasons at UC Irvine, will be a graduate transfer and eligible to play immediately.
Hazzard told 247Sports he is looking to contribute right away.
"They were down this past year and I like my chances to come in and fulfilling a big role and hopefully getting them back to Arizona basketball, where they belong," he said.
"I've always wanted to play in a high major program," said Hazzard, a Los Angeles native. "You know, I wasn't really highly recruited out of high school, not saying I could've gone to Arizona but I could've gone a little bit higher. I've always played with a chip on my shoulder and that has benefited me."
His brother, Jacob, played at Arizona from 2012-16.
Hazzard played in 37 games (36 starts) at Irvine in the 2018-19 season and averaged 12.5 points, 2.1 assists and 2.0 rebounds. The champions of the Big West, the Anteaters upset Kansas State in the first round of the NCAA Tournament.