South West Pacific theatre of World War II

The South West Pacific was one of two theatres of World War II in the Pacific region, between 1942 and 1945. The South West Pacific theatre included the Philippines, most of the Dutch East Indies, Borneo, Australia, the Australian territory of New Guinea (including the Bismarck Archipelago), the western part of the Solomon Islands and some neighbouring territories. The theatre takes its name from the major Allied command, which was known simply as the "South West Pacific Area".

In the theatre, Empire of Japan forces fought primarily United States and Australian forces. Dutch, Filipino, British and other Allied forces also served in the theater.