Alfredo da Costa may refer to:
Alfredo Bruto da Costa (1938–2016), Portuguese politician Alfredo Luís da Costa (1883–1908), Portuguese man who was one of the perpetrators of the Lisbon Regicide in 1908 Alfredo Nobre da Costa (1923–1996), prime minister of Portugal in 1978 Maternidade Alfredo da Costa, a maternity hospital in Lisbon, Portugal