The slave ship Mary Ann arrived with enslaved Africans in Guyana. About 218 people had been taken aboard and approximately 196 arrived.

Vessel: Mary Ann; flag: Great Britain; rig: Ship; estimated standardized tonnage: 197. People recorded in connection with the voyage: Investor: Neilson, William; Investor: Heathcoat, William; Captain: Campbell, John; Investor: Campbell, John; Captain: Holmes, Archibald. The voyage began at Liverpool on 8 August 1800. Principal recorded place where captives were acquired: Calabar (Bight of Biafra and Gulf of Guinea islands). Principal recorded disembarkation place: Demerara. Recorded outcome: Voyage completed as intended.