Lüshunkou, Dalian

Lüshunkou
旅顺口区
View of Lüshun's harbor and town from Huangjin Mountain
Lüshunkou
Location in Liaoning
Lüshunkou
Lüshunkou (China)
Coordinates: 38°51′03″N 121°15′25″E / 38.85083°N 121.25694°E / 38.85083; 121.25694
CountryPeople's Republic of China
ProvinceLiaoning
Sub-provincial cityDalian
Area
 • Total
512.15 km2 (197.74 sq mi)
Population
 (2020)
 • Total
398,579
 • Density778.25/km2 (2,015.6/sq mi)
Time zoneUTC+8 (China Standard)
Division code210212
Websitewww.dllsk.gov.cn

Lüshunkou District (also Lyushunkou District; 旅顺口区), commonly known as Lüshun (旅顺), is a district of Dalian, Liaoning province, China. The district has an area of 512.15 km2 (197.74 sq mi) and a permanent population of 398,579 as of 2020.

Lüshunkou is located at the extreme southern tip of the Liaodong Peninsula. It has a natural harbor, the possession and control of which became a casus belli of the Russo-Japanese War (1904–05). Japanese and then Russian administration was established in 1895 and continued until 1905 when control was ceded to Japan. During that period, it was world-famous and was more significant than the other port on the peninsula, Dalian proper.

Lüshunkou was formerly known as both Port Arthur (Russian: Порт-Артур, romanizedPort-Artur) and Ryojun (Japanese: 旅順). After World War II, it was returned to China as Lüshun City. In 1960, Lüshun was redesignated as a district of Dalian (known as Lüda until 1981).