The slave ship Vicomtesse de Castellane left the African coast carrying enslaved Africans toward Haiti. About 330 people had been taken aboard.

Vessel: Vicomtesse de Castellane; flag: France; estimated standardized tonnage: 150. People recorded in connection with the voyage: Investor: Beaufils; Captain: Le Moine; Investor: Pouchet. The voyage began at Le Havre on 1 July 1775. Principal recorded place where captives were acquired: West Central Africa and St Helena, port unspecified. Principal recorded disembarkation place: Port-au-Prince. Recorded duration of the captives' Atlantic crossing: 79 days. Estimated mortality during the crossing: 2.0%. Recorded outcome: Voyage completed as intended.