London will be introduced at a news conference Monday at Howard.
London, 56, was previously the head coach at Virginia from 2010 to 2015 and at Richmond, his alma mater, in 2008 and 2009.
London had a difficult task with the Terps in rebuilding a defensive line that lost both defensive end Yannick Ngakoue and Quinton Jefferson, both of whom played in the NFL this season.
Maryland went 6-7 and ranked 12th in the Big Ten in total defense in London's lone season on the staff.
Under London, the Terps were tied for third in the Big Ten in sacks per game (2.8), led by juniors Jesse Aniebonam (9.5 sacks, 14 tackles for loss) and Kingsley Opara (three sacks, 11.5 TFL), but were 12th in yards allowed per rush (4.8).