Ruplal House (formerly known as Aratoon House) is a 19th-century mansion in Farashganj area in Dhaka, Bangladesh. It was built on the northern bank of the Buriganga River, beside the Buckland Dam. The house was built in 1825 by an Armenian businessman Stephen Aratoon. It was later bought by two merchants, Ruplal Das and his brother Raghunath Das, in 1840. Later, an architect firm of Calcutta, Martin Company, re-constructed this building.