| Championship details | |
|---|---|
| Dates | 1 July – 15 August 2021 |
| Teams | 31 |
| All-Ireland Champions | |
| Winning team | Offaly (2nd win) |
| Captain | Kieran Dolan |
| Manager | Declan Kelly |
| All-Ireland Finalists | |
| Losing team | Roscommon |
| Captain | Colin Walsh |
| Manager | Liam Tully |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Offaly |
| Ulster | Down |
| Connacht | Roscommon |
| Championship statistics | |
| No. matches played | 30 |
| Goals total | 91 (3.03 per game) |
| Points total | 667 (22.23 per game) |
| Top Scorer |  Jack Bryant (4–22) |
| Player of the Year | Jack Bryant |
← 2020 2022 → | |
The 2021 All-Ireland Under-20 Football Championship was the fourth staging of the All-Ireland Under-20 Championship and the 58th staging overall of a Gaelic football championship for players between the minor and senior grades. The championship began on 1 July and ended on 15 August 2021.
Galway entered the championship as the defending champions, however, they were beaten by Mayo after a penalty shootout in the Connacht semi-final.[1][2]
The final was played on 15 August 2021 at Croke Park in Dublin, between Offaly and Roscommon, in what was their first ever championship meeting. Offaly won the match by 1-14 to 1-11 to claim their second championship title overall and a first title since 1988.[3][4][5]
- ^ "Galway edge Dublin to claim U20 All-Ireland title". RTÉ Sport. 19 December 2020. Retrieved 16 July 2021.
- ^ "Mayo beat All-Ireland champions Galway on penalties to reach Connacht U20 final". The 42. 13 July 2021. Retrieved 16 July 2021.
- ^ "Offaly land All-Ireland U20 title after thrilling win over Roscommon". The 42. 15 August 2021. Retrieved 15 August 2021.
- ^ "Jack Bryant the hero as Offaly claim All-Ireland U20 title". Irish Examiner. 15 August 2021. Retrieved 17 August 2021.
- ^ "Offaly get the upper hand on Roscommon to win All-Ireland under-20 title". Irish Times. 15 August 2021. Retrieved 17 August 2021.