"Common knowledge became official Friday when Dennis Allen was named head coach of the Raiders.
The Raiders issued a release announcing a news conference to introduce Allen on Monday at noon at the club facility in Alameda.
Allen, 39, replaces Hue Jackson, fired by general manager Reggie McKenzie after an 8-8 season, with McKenzie saying he wanted to hire his "own guy."
Contract terms were not revealed, although Comcast SportsNet Bay Area reported it as a four-year deal.
The Denver Broncos had already acknowledged Allen's departure, with coach John Fox telling the Denver Post on Wednesday it was a "great opportunity" for a defensive coordinator hired only a year ago.
Allen is the first Raiders head coach with a defensive background since Al Davis hired John Madden in 1969.
McKenzie will look to Allen to bring stability to an organization that will have its 10th head coach since returning to Oakland in 1995 and the seventh over the past 10 seasons.
McKenzie said at the news conference announcing his hiring as G.M. on Jan. 10 that the structure will be similar to what he experienced for 18 seasons working for the Green Bay Packers."