The Coat of Arms of the Polish-Lithuanian Commonwealth was the symbol of the Polish-Lithuanian Commonwealth, representing the union of the Kingdom of Poland and Grand Duchy of Lithuania. It combined their previously separate coats of arms:

Image:Herb_Polski.svg|Coat of Arms of Poland, the White Eagle Image:Herb Pogon Litewska.jpg|Coat of Arms of Grand Duchy of Lithuania, the Knight/the Chase (Vytis, Pahonia)

During the January Uprising a similar coat of arms was proposed for the restored Commonwealth, with Archangel Michael, the coat of arms of Ukraine added as the third element. However, it was never officially introduced.

Image:Rzeczpospolita_Obojga_Narodow.png|Coat of Arms for a proposed Polish-Lithuanian-Ruthenian Commonwealth Image:Herb_Polski.svg|Modern Coat of Arms of Poland Image:Coat of Arms of Lithuania.svg|Modern Coat of Arms of Lithuania Image:Belarus Coat of Arms, 1991.png|Coat of Arms of Belarus before 1995

Coats of arms of former countries | Polish coats of arms | History of Belarus | History of Lithuania | History of Poland (1569–1795)

Lambang Persemakmuran Polandia-Lituania | Brasão da República das Duas Nações