2021 Primera Nacional
| Season | 2021 |
|---|---|
| Dates | 12 March – 21 December 2021 |
| Champions | Tigre (1st title) |
| Promoted | Tigre Barracas Central |
| Relegated | None |
| Matches played | 590 |
| Goals scored | 1,219 (2.07 per match) |
| Top goalscorer | Pablo Magnín (22 goals) |
| Biggest home win | Ferro Carril Oeste 6–0 Indep. Rivadavia (10 September) Ferro Carril Oeste 6–0 San Telmo (26 October) |
| Biggest away win | Def. de Belgrano 1–6 Tristán Suárez (10 July) |
| Highest scoring | Indep. Rivadavia 4–3 San Telmo (22 March) Quilmes 3–4 Alvarado (10 May) Def. de Belgrano 1–6 Tristán Suárez (10 July) |
← 2020 2022 → | |
The 2021 Argentine Primera Nacional, also known as the Campeonato de Primera Nacional 2021, was the 37th season of the Primera Nacional, the second tier of Argentine football. The season began on 12 March 2021 and ended on 21 December 2021. Thirty-five teams competed in the league, thirty returning from the 2020 season, two teams promoted from Torneo Federal A and three from Primera B Metropolitana.
Tigre were the champions, winning their first Primera Nacional title by beating Barracas Central by a 1–0 score in the final played on 22 November 2021 and earned promotion to the Argentine Primera División.