
The Battle of Nowy Dwór was fought during September 20 – September 30, 1655 between forces of the Polish–Lithuanian Commonwealth commanded by Jan Kazimierz Krasiński on one side, and on the other Swedish Empire forces commanded by Gustaf Otto Stenbock. It ended in Swedish victory.

The Battle of the Severn was a skirmish fought on March 25, 1655, on the Severn River at Horn Point, across Spa Creek from Annapolis, Maryland, in what at that time was referred to as the Puritan settlement of "Providence", and what is now the neighborhood of Eastport.

The Battle of Ujście was fought on July 24–25, 1655 between forces of the Polish–Lithuanian Commonwealth commanded by Krzysztof Opaliński and Andrzej Grudziński on one side, and on the other Swedish forces commanded by Arvid Wittenberg. Krzysztof Opaliński and Bogusław Leszczyński, dissatisfied with policies of King John II Casimir of Poland, decided to become Swedish allies together with the pospolite ruszenie of Greater Poland to Charles X Gustav of Sweden.

The Battle of Żarnów was fought on September 16, 1655, between the forces of the Polish-Lithuanian Commonwealth, commanded by John II Casimir and the forces of the Swedish Empire, commanded by Charles X Gustav. The result ended with a Swedish victory.

The Invasion of Jamaica took place in May 1655, during the 1654 to 1660 Anglo-Spanish War, when an English expeditionary force captured Spanish Jamaica. It was part of an ambitious plan by Oliver Cromwell to acquire new colonies in the Americas, known as the Western Design.

The siege of Kraków was one of the battles during the Swedish invasion of Polish–Lithuanian Commonwealth. It started on 25 September 1655 and ended on 13 October 1655. Capitulation treatment was signed 4 days later. Polish troops marched out the city on 19 October. The city's defense was led by Kiev's castellan Stefan Czarniecki, while Swedish forces were commanded by king Charles Gustav and Arvid Wittenberg.

The Peach Tree War, also known as the Peach War, was a large-scale attack on September 15, 1655 by the Susquehannock Indians and allied tribes on several New Netherland settlements along the North River.

The Penruddock Uprising was a Royalist revolt launched on 11 March 1655, intending to restore Charles II to the throne of England. It was led by John Penruddock, a Wiltshire landowner who fought for Charles I in the First English Civil War; intended as one of a number of co-ordinated risings, the others failed to take place and it was easily suppressed.
The Siege of Danzig took place between 1655 and 1660 when a Swedish force tried to capture this important Baltic Sea port city from the Polish-Lithuanian Commonwealth during the Second Northern War. After 5 years of fighting around Danzig (Gdańsk), the Swedish force which has made little ground surrendered.

The Siege of Jasna Góra took place in the winter of 1655 during the Second Northern War, or 'The Deluge' — as the Swedish invasion of the Polish–Lithuanian Commonwealth is known. The Swedes were attempting to capture the Jasna Góra monastery in Częstochowa. Their month-long siege, however, was unsuccessful, as a small force consisting of monks from the Jasna Góra monastery led by their Prior and supported by local volunteers, mostly from the szlachta, fought off the numerically superior Germans, saved their sacred icon, the Black Madonna of Częstochowa and, according to some accounts, turned the course of the war.

The Battle of Wojnicz was fought on October 3, 1655 between forces of the Polish-Lithuanian Commonwealth commanded by Field Crown Hetman Stanisław Lanckoroński and Great Crown Hetman Stanisław Rewera Potocki on one side, and on the other Swedish forces commanded by Charles X Gustav. The battle ended in Swedish victory.