Coat of Arms of Polish-Lithuanian Commonwealth was the symbol of the Polish-Lithuanian Commonwealth, representing the union of two states: the Kingdom of Poland and Grand Duchy of Lithuania. Therefore it was made by combining their two previously separate coats fo arms:

• Coat of Arms of Poland, the White Eagle
• Coat of Arms of Lithuania, the Knight/the Chase (Vytis, Pahonya, Pogoń)

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.

Coat of Arms for a proposed Polish-Lithuanian-Ruthenian Commonwealth

Modern Coat of Arms of Poland

Modern Coat of Arms of Lithuania