The slave ship União Feliz arrived with enslaved Africans in Brazil. About 659 people had been taken aboard and approximately 430 arrived.

Vessel: União Feliz; flag: Portugal / Brazil; rig: Galera. People recorded in connection with the voyage: Investor: Correa, Antônio Dias; Captain: Silva, Joaquim José da; Captain: Caldeira, Antônio Gomes; Captain: Teixeira, Jacinto Alves. The voyage began at Rio de Janeiro on 10 September 1817. Principal recorded place where captives were acquired: Mozambique (East Africa and Indian Ocean islands). Principal recorded disembarkation place: Rio de Janeiro. Recorded duration of the captives' Atlantic crossing: 76 days. Estimated mortality during the crossing: 35.0%. Recorded outcome: Voyage completed as intended.