The 2S1 Gvozdika (Russian: 2С1 «Гвоздика», "Carnation") is a Soviet self-propelled howitzer introduced in 1972 and is in service in Russia and other countries as of 2024[update].

It has seven road wheels on each side; the running gear can be fitted with different widths of track to match terrain.

The gun is equipped with a power rammer, a double-baffle muzzle brake and a fume extractor.

It is capable of firing HE (high explosive), leaflet, HE/RAP, armor-piercing HE, flechette and chemical rounds.

The 2S1 Gvozdika, and other related vehicles such as the MT-LB and Opal, were produced in Poland by Huta Stalowa Wola under the name 2S1 Goździk.