The slave ship Mars left the African coast carrying enslaved Africans toward French Guiana. About 183 people had been taken aboard.

Vessel: Mars; flag: France. People recorded in connection with the voyage: Investor: Baudoin; Captain: Pinson; Captain: Delavaud. The voyage began at Rochefort on 29 December 1791. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Cayenne. Recorded duration of the captives' Atlantic crossing: 174 days. Estimated mortality during the crossing: 87.0%. Recorded outcome: Sold in the Americas after disembarking enslaved people.