Luís de Almeida Sampaio (Portuguese pronunciation: [lu'i? d? a?'m?jd? s?~'paju] (listen)) (born Caetano Luís Pequito de Almeida Sampaio, December 16, 1957 in Porto, Portugal) is a Portuguese career diplomat.
He currently serves as the Permanent Representative of Portugal in the North Atlantic Council, the principal political decision-making body within NATO.