The 4th Army Corps (Azerbaijani: 4-ci Ordu Korpusu), also referred to as the Baku Army Corps is a regional military formation of the Azerbaijani Land Forces, that covers Absheron Peninsula and the coast, currently deployed from the capital of Baku.

[4] The corps consists of three motorized rifle brigades: one at Zeynalabdin, one at Jusar, and another at an undisclosed location.

Unlike the other corps, its role was mainly to serve as a strategic reserve.

[5] At the beginning of the 2020 Nagorno-Karabakh war, Azerbaijan lined up six additional motorized infantry brigades along the front line, with reservists being mobilized and transferred from the 4th Corps.

[8] A facilities in the village of Pirəkəşkül in the Absheron Rayon is the site of a missile base operated by the corps, opened in June 2018 by President Ilham Aliyev.