"Festus is an outstanding addition to the Trail Blazer organization on and off the court," Blazers president of basketball operations Neil Olshey said in a statement. "He will make an immediate impact and be a valuable addition to our culture."
The Blazers will pay Ezeli $7.4 million next season with a team option paying him $7.33 million the second season. The 6-foot-11, 265-pounder averaged 7.0 points, 5.6 rebounds and 1.1 blocks with the Warriors last season. He was a member of their 2015 NBA championship team.
The Vertical earlier reported Ezeli's deal.
Ezeli visited the Blazers on Wednesday in Portland. The Nigerian became an unrestricted free agent after the Warriors relinquished their rights to him after getting a commitment from seven-time NBA All-Star Kevin Durant.