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

Vessel: Zéfiro; flag: Portugal / Brazil; rig: Brig; estimated standardized tonnage: 160. People recorded in connection with the voyage: Investor: Viana, Manoel Rodrigues de Sá; Investor: Viana; Captain: Brito, Vítor Nobre de. The voyage began at Lisbon on 18 April 1820. Principal recorded place where captives were acquired: Malembo (West Central Africa and St Helena). Principal recorded disembarkation place: Havana. Recorded outcome: Voyage completed as intended.