Vivekanandar Illam, earlier known as Ice House or Castle Kernan, is a historical building in Chennai, India. It was constructed in 1842 by Frederic Tudor. Indian Saint Swami Vivekananda stayed in the building when he visited Chennai in 1897, and it was later renamed in his honor. It is currently maintained by Ramakrishna Math and houses an exhibition on the life of Vivekananda.