Porto is one of the 22 multi-member constituencies of the Assembly of the Republic, the national legislature of Portugal.

The constituency currently elects 40 of the 230 members of the Assembly of the Republic using the closed party-list proportional representation electoral system.

Porto currently elects 40 of the 230 members of the Assembly of the Republic using the closed party-list proportional representation electoral system.

Results of the 2024 legislative election held on 10 March 2024:[8] The following candidates were elected:[9] Óscar Afonso (AD); Rui Afonso (CH); Diogo Pacheco de Amorim (CH); Sofia Andrade (PS); Francisco de Assis (PS); José Carlos Barbosa (PS); Carlos Brás (PS); Ana Gabriela Cabilhas (AD); Hugo Carneiro (AD); José Carvalho (CH); João Paulo Correia (PS); Patrícia Faro (PS); Alberto Fonseca (AD); Olga Freire (AD); Rosário Gambôa (PS); Patrícia Gilvaz (IL); Miguel Guimarães (AD); Joana Lima (PS); Francisco Covelinhas Lopes (AD); Alberto Machado (AD); Alfredo Maia (CDU); Marisa Matias (BE); Nuno Melo (AD); Raul Melo (CH); Sónia Monteiro (CH); Andreia Neto (AD); Isabel Oneto (PS); Eduardo Pinheiro (PS); Carlos Guimarães Pinto (IL); Jorge Pinto (L); Manuel Pizarro (PS); Tiago Barbosa Ribeiro (PS); Germana Rocha (AD); Cristina Rodrigues (CH); Pedro Roque (AD); Marcus Santos (CH); José Soeiro (BE); Pedro Neves de Sousa (AD); João Torres (PS) (PS); and Francisco Sousa Vieira (AD).

Results of the 1985 legislative election held on 6 October 1985:[32] The following candidates were elected:[33] Rui Amaral (PSD); Amélia Azevedo (PSD); Leonor Beleza (PSD); Manuel Cavaleiro Brandão (CDS); Mário Cal Brandão (PS); Bártolo Campos (PRD); José Maria Vieira Dias de Carvalho (PRD); Maria da Glória Carvalho (PRD); Vieira de Carvalho (CDS); Raúl Castro (APU); Rosado Correia (PS); Barbosa da Costa (PRD); Carlos Costa (APU); Alípio Dias (PSD); Ilda Figueiredo (APU); Fernando Gomes (PS); Carlos Lage (PS); José da Silva Lopes (PRD); António Macedo (PS); Mário Montalvão Machado (PSD); José Narciso de Miranda (PS); Adriano Moreira (CDS); Manuel Moreira (PSD); António da Silva Mota (APU); José Luís Nunes (PS); Valente de Oliveira (PSD); José Albino Silva Peneda (PSD); António Eduardo Andrade de Sousa Pereira (PRD); Carlos Pereira Pinto (PS); Lacerda de Queiroz (PSD); Jaime Silva Ramos (PRD); José Rodrigo (PRD); Guido Rodrigues (PSD); António de Almeida Santos (PS); Joaquim Santos (CDS); José Augusto Seabra (PSD); António Tavares (PSD); Gonçalo Ribeiro Telles (PS); and Ângelo Veloso (APU).