Portugal was represented at the Eurovision Song Contest 1967 with the song "O vento mudou", composed by Nuno Nazareth Fernandes, with lyrics by João Magalhães Pereira, and performed by Eduardo Nascimento.

[1] Radiotelevisão Portuguesa (RTP) held the Grande Prémio TV da Canção Portuguesa 1967 at Tóbis studios in Lisbon, hosted by Isabel Wolmar and Henrique Mendes.

Each semi-final featured six competing entries from which three advanced to the final from each show.

[3] On the night of the final Nascimento performed 5th in the running order, following France and preceding Switzerland.

At the close of the voting the song had received 3 points, coming 12th in the field of 17 competing countries.