The slave ship Sílfide departed on a transatlantic slave-trading voyage that would carry enslaved Africans to Brazil.

Vessel: Sílfide; flag: Portugal / Brazil; rig: Yacht; estimated standardized tonnage: 337.1. People recorded in connection with the voyage: Investor: Nobre, Francisco Inácio da Siqueira; Investor: Ferraz, Marcos Borges. The voyage began at Bahia, place unspecified on 21 February 1851. Principal recorded place where captives were acquired: Lagos, Onim (Bight of Benin). Principal recorded disembarkation place: Maceió. Recorded duration of the captives' Atlantic crossing: 28 days. Estimated mortality during the crossing: 22.0%. Recorded outcome: Shipwrecked or destroyed, after disembarkation.