Port Arthur may refer to:
Places Australia Port Arthur, Tasmania, the site of a historic convict settlement Port Arthur, South Australia, a locality
Canada Port Arthur, Ontario, a former city, now a part of Thunder Bay Port Arthur (federal electoral district)
China Port Arthur, China, now called Lüshunkou District, in the city of Dalian
Finland VIII District, Turku, a district in Turku
United States Port Arthur, Texas, a city in the United States Port Arthur, Wisconsin, an unincorporated community Events Port Arthur massacre (China) in the Sino-Japanese War in 1894 Battle of Port Arthur, a sea battle in the Russo-Japanese War in 1904 Siege of Port Arthur, a land battle in 1904 during the Russo-Japanese War Port Arthur Case, a fabricated political case carried out in Mongolia between 1947 and 1949 Port Arthur massacre, which occurred in Port Arthur, Tasmania in 1996
Movies Port Arthur (film), a 1936 drama film directed by Nicolas Farkas Games Port Arthur (wargame), a 1977 board wargame that simulates the 1904 Siege of Port Arthur
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