This is a list of Portuguese football transfers for the summer of 2023. The summer transfer window will open 1 July and close at midnight on 31 August. Players may be bought before the transfer windows opens, but may only join their new club on 1 July. Only moves involving Primeira Liga clubs are listed. Additionally, players without a club may join a club at any time.
Miguel Ângelo Marques Granja , known as Bura, is a Portuguese professional footballer who plays as a central defender for U.D. Leiria.
Jorge da Costa Pires is a Portuguese former professional footballer who played as a striker.
Bruno Daniel Pereira Castro Moreira is a Portuguese former professional footballer who played as a forward.
The 2018–19 season was Futebol Clube do Porto's 109th competitive season and 85th consecutive season in the top flight of Portuguese football. It began on 4 August 2018 and concluded on 25 May 2019.
The 2019–20 season was Futebol Clube do Porto's 110th competitive season and 86th consecutive season in the top flight of Portuguese football. It started with the UEFA Champions League third qualifying round on 7 August 2019 and concluded with the Taça de Portugal final against Benfica on 1 August 2020.
The 2020–21 Sport Lisboa e Benfica season was the club's 117th season in existence and its 87th consecutive season in the top flight of Portuguese football. This season, Benfica invested €105 million amid the COVID-19 pandemic, a record investment in Portuguese football. Domestically, Benfica lost the Supertaça Cândido de Oliveira match, were eliminated in the semi-finals of the Taça da Liga, finished third in the Primeira Liga – their worst league position since 2008–09 – and lost a Taça de Portugal final for a second time in a row. Internationally, Benfica were eliminated in the UEFA Champions League third qualifying round and in the round of 32 of the UEFA Europa League, respectively. The season started on 18 September 2020 and concluded on 23 May 2021. Considered a failed, disastrous season, it was the first time Benfica ended trophyless since 2012–13.
The 2020–21 Boavista F.C. season was the club's 118th season in existence and the club's seventh consecutive season in the top flight of Portuguese football. In addition to the domestic league, Boavista participated in this season's edition of the Taça de Portugal, being eliminated in the fourth round. The club did not qualify for the condensed version of the Taça da Liga this season. The season covered the period from July 2020 to 30 June 2021.
The 2022–23 Sport Lisboa e Benfica season was the club's 119th season in existence and its 89th consecutive season in the top flight of Portuguese football. It started on 2 August 2022, with the third qualifying round of the UEFA Champions League, where Benfica qualified for the group stage, reaching the quarter-finals, and concluded on 27 May 2023. Domestically, Benfica played in the Primeira Liga, Taça de Portugal, and Taça da Liga, winning the league title for a 38th time in their history.
The 2022–23 season is the 72nd season in the history of F.C. Paços de Ferreira and their fourth consecutive season in the top flight. The club are participating in the Primeira Liga, the Taça de Portugal, and the Taça da Liga.
The 2022–23 season is the 84th in the history of F.C. Vizela and their second consecutive season in the top flight. The club will participate in the Primeira Liga, the Taça de Portugal, and the Taça da Liga.
Celton Anssumane Biai is a professional footballer who plays as a goalkeeper for Eerste Divisie club Dordrecht. Born in Portugal, he plays for the Guinea-Bissau national team.
The 2023–24 Sport Lisboa e Benfica season is the club's 120th season in existence and its 90th consecutive season in the top flight of Portuguese football. Domestically, Benfica play in the Primeira Liga and Taça de Portugal, and reached the Taça da Liga semi-finals. In Europe, Benfica played in the UEFA Champions League group stage, and will play in the UEFA Europa League knockout phase. The season started on 9 August 2023, with a 2–0 win over Porto in the Supertaça match, and will conclude in May 2024.