António Joaquim Bastos Marques Mendes (March 30, 1934 – June 15, 2015) was a Portuguese lawyer and politician.
Born in, Porto, Paranhos, he is a son of Joaquim Marques Mendes (Fornos de Algodres, Figueiró da Granja, March 3, 1892 – Porto, Paranhos, January 19, 1941), Director of Services in the Correios, Telégrafos e Telefones, and wife (m. Fafe, São Romão de Arões, April 20, 1933) Antónia Pereira da Costa Bastos (Fafe, São Romão de Arões, December 18, 1904 – Fafe, São Romão de Arões, October 2, 1990). He died in Porto in 2015.
He is a Licentiate in Law from the Faculty of Law of the University of Coimbra.
He started his career as a lawyer.
Among other things he as a Co-Founder and a Member of the Social Democratic Party together with Francisco Sá Carneiro, Francisco Pinto Balsemão, Joaquim Magalhães Mota, Carlos Mota Pinto, João Bosco Mota Amaral, Alberto João Jardim and António Barbosa de Melo of then Popular Democratic Party. He became Mayor of the Municipal Chamber of Fafe, Deputy to the Portuguese Assembly of the Republic and also a Representative at the European Parliament for his Party.