The top remaining free-agent pass rusher agrees to a one-year, $10.5 million deal with Chicago.
Coming off an NFL-low 20 sacks in 2022, Chicago's pass rush needs a boost.
Despite his sixth franchise in five seasons, Ngakoue has consistently posted eight or more sacks every year.
Ngakoue expressed a desire for stability after bouncing between teams.
Ngakoue's addition is expected to immediately improve the Bears' pass rush.
The Bears have made significant free-agent additions, and Ngakoue is set to slot into the starting lineup.
Head coach Matt Eberflus hopes Ngakoue will be the difference-maker Chicago needs after losing Khalil Mack and Robert Quinn.