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

Vessel: Silveirinha; flag: Portugal / Brazil; rig: Brig; estimated standardized tonnage: 82. People recorded in connection with the voyage: Investor: Aguiar, Julião Álvares de; Captain: Lopes, Inocêncio dos Santos. The voyage began at Pernambuco, place unspecified on 19 February 1821. Principal recorded place where captives were acquired: Cabinda (West Central Africa and St Helena). Principal recorded disembarkation place: Pernambuco, place unspecified. Recorded outcome: Left home port, no further record.