The Skøyen Line (Norwegian: Skøyenlinjen/Skøyenlinja) is a tramway line running from Slottsparken to Skøyen in Oslo, Norway. It is served by line 13 of the Oslo Tramway. It connects the Briskeby Line at Slottsparken to the Lilleaker Line at Skøyen. The line was built on 2 March 1894 from Slottsparken to Skarpsno, and extended to Skøyen in 1903, by Kristiania Elektriske Sporvei. At first a shuttle service was provided on the branch line, but by April a through service was offered to Østbanen.