Sister cities of Port Moresby

Port Moresby (/ˌpɔərt ˈmɔərzbi/; Tok Pisin: Pot Mosbi) is the capital and largest city of Papua New Guinea (PNG). It is located on the shores of the Gulf of Papua, on the southeastern coast of the Papuan Peninsula of the island of New Guinea, which made it a prime objective for conquest by the Imperial Japanese forces during 1942–43 in World War II, as a staging point and air base to cut off Australia from Southeast Asia and the Americas.

In 2000 it had a population of 254,158. As of 2009 it has a population of 307,643, giving it an annual growth rate of 2.1% over a nine-year period. The place where the city was founded has been inhabited by the Motu-Koitabu people for centuries. The first European to see it was Captain John Moresby in 1873. It was named in honour of his father, Admiral Sir Fairfax Moresby.

According to a survey of world cities by the Intelligence Unit of The Economist, Port Moresby is one of the world's least livable cities (ranked 139 of 140 cities rated).

Although Port Moresby is surrounded by Central Province, of which it is also the capital, it is not part of that province, but forms the National Capital District.