SS Greater Detroit was a sidewheel steamer on Lake Erie that was launched in 1923. It was operated by the Detroit and Cleveland Navigation Company and carried passengers between Detroit, Michigan and Buffalo, New York. Greater Detroit and her sister ship, SS Greater Buffalo, were the largest and most expensive sidewheel steamers in the world at the time of their launching, and were capable of transporting more passengers than many oceangoing liners of the time. They were renowned for their onboard luxury, decor and modern amenities. Nicknamed the "Leviathan of the Great Lakes", Greater Detroit was in passenger service for 26 years until 1950, when she became too expensive to continue to operate. The ship was sold for scrap in 1956.