SS Katoomba was a passenger steamship that was built in Ireland 1913, spent most of her career in Australian ownership and was scrapped in Japan in 1959. McIlwraith, McEacharn & Co owned her for more than three decades, including two periods when she was a troopship. In 1946 the Goulandris brothers bought her for their Greek Line and registered her in Panama. In 1949 she was renamed Columbia.