The Battle of Lüshunkou (Japanese: was a land battle of the First Sino-Japanese War. It took place on 21 November 1894 in Lüshunkou, Manchuria (later called Port Arthur, in present day Liaoning Province, China) between the forces of the Empire of Japan and the Empire of China. It is sometimes referred to archaically in western sources as the Battle of Port Arthur (that name is now primarily used for the opening battle of the Russo-Japanese War in 1904).