The BTR-4 (BTR; Бронетранспортер / Bronetransporter, literally Armoured Transporter) is a 8x8 wheeled armoured personnel carrier (APC) designed in Ukraine by the Kharkiv Morozov Machine Building Design Bureau (SOE KMDB) as a private venture. The prototype, which was designed as a private venture, was unveiled at the Aviasvit 2006 exhibition held in Ukraine in June 2006.