BTR-90 (GAZ-5923) (Russian: бронетранспортёр, romanized: Bronetransportyor, lit. 'Armoured Transporter') is an 8×8 wheeled armored personnel carrier developed in Russia, designed in 1993 and first shown publicly in 1994. It is a larger version of the BTR-80 vehicle, fitted with a BMP-2 turret. Armour protection is improved compared with the BTR-80, giving protection from 14.5 mm projectiles over the frontal arc.

It is armed with a 2A42 30 mm auto cannon, a coaxial 7.62 mm PKT machine gun, an AT-5 Spandrel ATGM, as well as an AGS-17D 30 mm automatic grenade launcher. Limited numbers have been produced and are in service with the National Guard of Russia.

In October 2011, the Ministry of Defence refused to buy the BTR-90 and did not include them in the list of the state program of armament until 2020, and waived exports for the BTR-90.

Subsequently, the Russian army chose to assemble a large number of BTR-82A. The combat effectiveness has already increased significantly, and it is derived from the BTR-80. The development cost for BTR-82A is omitted and the production cost is cheaper, making the less advanced BTR-90 even less likely to change its fate. The 2015 Moscow Victory Parade exposed the next-generation VPK-7829 Bumerang wheeled armored vehicle, and officially announced that the BTR-90 program could no longer be resurrected.