The 2S19 "Msta-S" (, after the Msta River) is a self-propelled 152 mm howitzer designed by Russia/Soviet Union, which entered service in 1989 as the successor to the SO-152. The vehicle is based on the T-80 tank hull, but is powered by the T-72's diesel engine.

The Msta is a river in Vyshnevolotsky, Udomelsky, and Bologovsky Districts of Tver Oblast and in Borovichsky, Okulovsky, Lyubytinsky, Malovishersky, Krestetsky, and Novgorodsky Districts, as well as in the town of Borovichi of Novgorod Oblast of Russia. It is a tributary of Lake Ilmen. It is long, and the area of its basin . The principal tributaries of the Msta are the Berezayka (left), the Uver (right), and the Kholova (left). The town of Borovichi and the urban-type settlement of Lyubytino are located on the banks of the Msta.