Fray Sebastien Manrique (Portuguese: Sebastião Manrique; c. 1590 – 1669) was a Portuguese Augustinian missionary and traveler. He traveled around countries of the East for about sixteen years during 1628–1643. In 1653, he published his work, titled Itinerario de las Missiones Orientales del P. Manrique (Itinerary of the Oriental Missions of Father Manrique), in Rome. Manrique traveled to India and reached Dhaka in September 1640 to inspect the Portuguese Catholic Church. He spent about 27 days in Dhaka. He was murdered in 1669 in London by his Portuguese servant.