Defender · #15
J. O'Brien
AGE25
BORN15 May 2001
HEIGHT197 cm
WEIGHT92 kg
NATIONALITYRepublic of Ireland
BIRTHPLACECork, Republic of Ireland
SEASONS8
Premier League
Season stats
APPS0
GOALS0
ASSISTS0
CAREER
Season by season
| SEASON | CLUB | COMP | APPS | MIN | GOALS | AST | RTG | YC | RC |
|---|---|---|---|---|---|---|---|---|---|
| 2026-27 |  Rep. Of Ireland | UEFA Nations League | 4 | 285 | 0 | 0 | 7.08 | 0 | 0 |
| 2026-27 | Rep. Of Ireland | Friendlies | 3 | 120 | 0 | 0 | 6.83 | 0 | 0 |
| 2026-27 |  Everton | Premier League | 3 | 35 | 0 | 0 | 4.98 | 0 | 0 |
| 2026-27 | Everton | League Cup | 1 | 90 | 0 | 0 | 7.00 | 0 | 0 |
| 2025-26 | Everton | Premier League | 37 | 3131 | 1 | 1 | 6.71 | 6 | 1 |
| 2025-26 | Rep. Of Ireland | Friendlies | 2 | 117 | 0 | 0 | 6.75 | 0 | 0 |
| 2025-26 | Everton | League Cup | 2 | 98 | 0 | 0 | 7.10 | 0 | 0 |
| 2025-26 | Everton | Premier League - Summer Series | 1 | 8 | – | 0 | 6.90 | 0 | 0 |
| 2025-26 | Everton | Friendlies Clubs | 1 | 8 | – | 0 | 6.90 | 0 | 0 |
| 2025-26 | Everton | FA Cup | 1 | 120 | 0 | 0 | 7.30 | 0 | 0 |
| 2024-25 | Everton | Premier League | 20 | 1569 | 2 | 0 | 6.91 | 5 | 0 |
| 2024-25 | Rep. Of Ireland | World Cup - Qualification Europe | 7 | 615 | 0 | 0 | 6.91 | 1 | 0 |
| 2024-25 | Rep. Of Ireland | UEFA Nations League | 3 | 134 | 0 | 0 | 6.67 | 1 | 0 |
| 2024-25 | Everton | League Cup | 2 | 180 | 0 | 1 | 7.45 | 0 | 0 |
| 2024-25 | Everton | FA Cup | 2 | 180 | 0 | 0 | 7.10 | 0 | 0 |
| 2024-25 | Rep. Of Ireland | Friendlies | 2 | 134 | 0 | – | – | 0 | 0 |
| 2024-25 |  Everton U21 | Premier League Cup | 1 | 90 | 0 | – | – | 0 | 0 |
| 2023-24 |  Lyon | Ligue 1 | 27 | 2370 | 4 | 2 | 6.91 | 4 | 1 |
| 2023-24 |  Republic of Ireland U21 | UEFA U21 Championship - Qualification | 11 | 884 | 0 | – | – | 2 | 0 |
| 2023-24 | Lyon | Coupe de France | 5 | 450 | 1 | 0 | 7.58 | 0 | 0 |
| 2022-23 |  RWDM | Challenger Pro League | 30 | 2529 | 3 | – | – | 3 | 0 |
| 2022-23 |  Crystal Palace U21 | Premier League 2 Division One | 2 | 180 | 0 | – | – | 0 | 0 |
| 2022-23 |  Crystal Palace | Friendlies Clubs | 2 | 37 | 0 | – | – | 0 | 0 |
| 2022-23 | RWDM | Cup | 1 | 90 | 0 | – | – | 0 | 0 |
| 2021-22 |  Swindon Town | League Two | 21 | 1457 | 0 | 1 | 6.75 | 1 | 0 |
| 2021-22 | Crystal Palace U21 | EFL Trophy | 1 | 90 | 0 | – | – | 0 | 0 |
| 2020-21 |  Cork City | Premier Division | 8 | 605 | 0 | – | – | 4 | 0 |
| 2020-21 | Cork City | FAI Cup | 1 | 90 | 0 | – | – | 0 | 0 |
| 2019-20 | Cork City | Premier Division | 1 | 90 | 0 | – | – | 0 | 0 |
| TOTAL | 202 | 15,786 | 11 | 5 |
FORM
Recent matches
| MATCH | MIN | RTG | G | A | SH | KP | TKL |
|---|---|---|---|---|---|---|---|
| vs Chelsea L 0-217 Oct 2026 · Premier League | 0 | 0.0 | 0 | 0 | 0 | 0 | 0 |
| @ Hull City D 2-211 Oct 2026 · Premier League | 12 | 6.2 | 0 | 0 | 0 | 0 | 0 |
| vs Ipswich W 1-019 Sept 2026 · Premier League | 0 | 0.0 | 0 | 0 | 0 | 0 | 0 |
| @ Tottenham D 0-012 Sept 2026 · Premier League | 15 | 6.5 | 0 | 0 | 0 | 0 | 0 |
| @ Bournemouth D 1-129 Aug 2026 · Premier League | – | – | 0 | 0 | 0 | 0 | 0 |
| vs Crystal Palace W 2-022 Aug 2026 · Premier League | – | – | 0 | 0 | 0 | 0 | 0 |
TRANSFERS
Moves & transfer history
- Lyon → Everton30 Jul 2024€ 19.5M
- RWDM → Crystal Palace1 Jul 2023N/A
- Crystal Palace → RWDM27 Aug 2022LOAN
- Swindon Town → Crystal Palace11 Jul 2022N/A
Cork City → Crystal Palace U233 Feb 2021LOAN
AVAILABILITY
Injury & absence history
- Knee Injury10 May 2025 → 16 May 2025
HONOURS
Trophies won
2× WINNERChallenger Pro League2022/2023
Also 2 runner-up finishes.