The
Polish–Swedish War of 1626–1629 was the fourth stage (after 1600–1611, 1617–1618, and 1620–1625) in a series of conflicts between
Sweden and
Poland fought in the 17th century. It began in 1626 and ended four years later with the
Truce of Altmark and later at
Stuhmsdorf with the
Treaty of Stuhmsdorf.