All squads are provisional until FIFA announces the final list of 26 players. This announcement will follow the submission of applications by the participating teams on June 2. Roberto Martinez announced his final squad on May 19.
| Shirt Number | Position | Player |
| 1 | Goalkeeper | Diogo Costa (Porto) |
| 2 | Defender | Nelson Semedo (Fenerbahce) |
| 3 | Defender | Ruben Dias (Manchester City) |
| 4 | Defender | Tomás Araújo (Benfica) |
| 5 | Defender | Diogo Dalot (Manchester United) |
| 6 | Defender | Matheus Nunes (Manchester City) |
| 7 | Forward | Cristiano Ronaldo (Al Nassr) – captain |
| 8 | Midfielder | Bruno Fernandes (Manchester United) |
| 9 | Forward | Gonçalo Ramos (PSG) |
| 10 | Midfielder | Bernardo Silva (Manchester City) |
| 11 | Forward | Joao Felix (Al Nassr) |
| 12 | Goalkeeper | Jose Sa (Wolves) |
| 13 | Defender | Renato Veiga (Villarreal) |
| 14 | Defender | Gonçalo Inácio (Sporting CP) |
| 15 | Midfielder | Joao Neves (PSG) |
| 16 | Forward | Francisco Trincão (Sporting CP) |
| 17 | Forward | Rafael Leao (Milan) |
| 18 | Forward | Pedro Neto (Chelsea) |
| 19 | Forward | Gonçalo Guedes (Real Sociedad) |
| 20 | Defender | Joao Cancelo (Barcelona, on loan from Al Hilal) |
| 21 | Midfielder | Ruben Neves (Al Hilal) |
| 22 | Goalkeeper | Rui Silva (Sporting CP) |
| 23 | Midfielder | Vitinha (PSG) |
| 24 | Midfielder | Samuel Costa (Mallorca) |
| 25 | Defender | Nuno Mendes (PSG) |
| 26 | Forward | Francisco Conceição (Juventus) |
Portugal coaching staff for 2026 World Cup
This is the expected Portugal coaching staff for the 2026 World Cup:
| Name | Role |
| Roberto Martinez | Head Coach |
| Ricardo Carvalho | Assistant Coach |
| Austin MacPhee | Assistant Coach |
| Ricardo | Goalkeeping Coach |
| Inaki Vergara | Goalkeeping Coach |
| Richard Evans | Performance Manager |
| Andre Reis | Match Analyst |
