| Tournament details | |
|---|---|
| Country | Philippines |
| Dates | November 7–19 |
| Teams | 5 |
| Defending champions | Ceres–Negros |
| Final positions | |
| Champions | Kaya–Iloilo (2nd title) |
| Tournament statistics | |
| Matches played | 8 |
| Goals scored | 23 (2.88 per match) |
| Top goal scorer(s) | Jarvey Gayoso (6 goals) |
The 2021 Copa Paulino Alcantara was the third edition of the Copa Paulino Alcantara, the domestic football cup competition of the Philippines. United City (then called Ceres–Negros) won the previous edition in 2019, but withdrew from the 2021 edition. Kaya–Iloilo won their second title by defeating the Azkals Development Team 1–0 in the final. All matches were played at the PFF National Training Center in Carmona, Cavite.