| P | # | Player | Born | Height | Weight | Contract | |
|---|---|---|---|---|---|---|---|
| GK | Fabiano | 1988-02-29 | 197 | 90 | 2019-06-30 | ||
| GK | Iker Casillas | 1981-05-20 | 185 | 79 | 2017-06-30 | ||
| GK | Ricardo | 1982-07-06 | 187 | 72 | 2019 jun | ||
| D | Alex Telles | 1992-12-15 | 181 | 78 | 2021-06-30 | ||
| D | Iván Marcano Sierra | 1987-06-23 | 189 | 74 | 2018 jun | ||
| D | Maicón | 1988-09-14 | 190 | 74 | 2017 jun | ||
| M | Danilo Pereira | 1991-09-09 | 187 | 65 | 2019-06-30 | ||
| M | Héctor Herrera | 1990-04-19 | 183 | 72 | |||
| M | Rúben Neves | 1997-03-13 | 180 | 75 | 2017-06-30 | ||
| M | Sérgio Oliveira | 1992-06-02 | 181 | 72 | 2020-06-30 | ||
| M | Yacine Brahimi | 1990-02-08 | 175 | 65 | 2019 jun | ||
| F | Pablo Osvaldo | 1986-01-12 | 183 | 73 |
| Date | Player | From | To | Status | Src |
|---|---|---|---|---|---|
| 30.Jun | Hyun-Jun Suk (F) | ES Troyes AC | FC Porto | Confirmed | |
| 30.Jun | Adrián López Álvarez (F) | Deportivo De La Coruña | FC Porto | Confirmed | |
| 30.Jun | José Àngel (D) | Villarreal CF | FC Porto | Confirmed | |
| 30.Jun | Diogo Jota (M) | FC Porto | Atlético de Madrid | Confirmed | |
| 30.Jun | Igor Lichnovsky (D) | Real Valladolid | FC Porto | Confirmed | |
| 30.Jun | Óliver Torres (M) | FC Porto | Atlético de Madrid | Confirmed | |
| 30.Jun | Bruno Martins Indi (D) | Stoke City | FC Porto | Confirmed | |
| 30.Jun | Vincent Aboubakar (F) | Besiktas JK | FC Porto | Confirmed | |
| 30.Jun | Alberto Bueno (F) | Granada CF | FC Porto | Confirmed | |
| 30.Jun | Andrés Fernández (GK) | Villarreal CF | FC Porto | Confirmed |