The Pomeranian War is a theater of the Seven Years' War.

The term is used to describe the fighting between Sweden and Prussia between 1757 and 1762 in Swedish Pomerania, Prussian Pomerania, northern Brandenburg and eastern Mecklenburg-Schwerin.The war is characterized by a back-and-forth movement of the Swedish and Prussian armies, neither of whom will score a decisive victory.

It starts when Swedish forces advance into Prussian territory in 1757, but are repelled and blockaded at Stralsund until their relief by a Russian force in 1758.

In the course of the following renewed Swedish incursion into Prussian territory, the small Prussian fleet is destroyed and areas as far south as Neuruppin are occupied, yet the campaign is aborted in late 1759 when the undersupplied Swedish forces succeed neither in taking the major Prussian fortress of Stettin (now Szczecin) nor in combining with their Russian allies.A Prussian counterattack of Swedish Pomerania in January 1760 is repelled, and throughout the year Swedish forces again advance into Prussian territory as far south as Prenzlau before again withdrawing to Swedish Pomerania in the winter.

Another Swedish campaign into Prussia starts in the summer of 1761, but is soon aborted due to shortage of supplies and equipment.

The final encounters of the war take place in the winter of 1761/62 near Malchin and Neukalen in Mecklenburg, just across the Swedish Pomeranian border, before the parties agree on the Truce of Ribnitz on April 7, 1762.

When on May 5 a Russo-Prussian alliance eliminates Swedish hopes for future Russian assistance, and instead poses the threat of a Russian intervention on the Prussian side, Sweden is forced to make peace.The war is formally ended on May 22, 1762, by the Peace of Hamburg between Prussia, Mecklenburg and Sweden.

The hopes of the Swedish Hats party to recover territories lost to Prussia in 1720 are thwarted, and the unpopular and costly war contributes to their subsequent downfall.