The Battle of Te-li-ssu (), also called Battle of Wafangou () after the nearby railway station, was a land battle of the Russo-Japanese War. It was fought at a hamlet some north of Port Arthur, Manchuria. The hamlet is known today as Delisi, and is located just north of Wafangdian, Liaoning Province, China. It was fought on 14–15 June 1904 between the Japanese Second Army under General Yasukata Oku and the Russian First Siberian Army Corps under Lieutenant General Georgii Stackelberg.