Head to Head
| Pro 14 Rugby | 2020/11/08 15:00 | Ospreys v Leinster | W | 7-26 |
| Pro 14 Rugby | 2020/02/21 19:35 | Ospreys v Leinster | W | 13-21 |
| Pro 14 Rugby | 2019/10/04 18:35 | Leinster v Ospreys | W | 53-5 |
| Pro 14 Rugby | 2018/11/23 19:35 | Leinster v Ospreys | W | 52-7 |
| Pro 14 Rugby | 2018/03/24 19:35 | Ospreys v Leinster | L | 32-18 |
| Pro 14 Rugby | 2017/04/08 14:00 | Ospreys v Leinster | W | 18-20 |
| Pro 14 Rugby | 2016/09/23 18:35 | Leinster v Ospreys | W | 31-19 |
| United Rugby Championship | 2016/03/05 15:00 | Leinster v Ospreys | W | 19-16 |
Home History
| Pro 14 Rugby | 2021/02/28 17:30 | Leinster v Glasgow Warriors | W | 40-21 |
| Pro 14 Rugby | 2021/02/19 19:35 | Newport Gwent Dragons v Leinster | W | 29-35 |
| Pro 14 Rugby | 2021/01/30 19:35 | Scarlets v Leinster | W | 25-52 |
| Pro 14 Rugby | 2021/01/23 19:35 | Munster v Leinster | W | 10-13 |
| Pro 14 Rugby | 2021/01/08 19:35 | Leinster v Ulster | W | 24-12 |
| Pro 14 Rugby | 2021/01/02 19:35 | Leinster v Connacht | L | 24-35 |
| European Rugby Champions Cup | 2020/12/19 13:00 | Leinster v Northampton | W | 35-19 |
| European Rugby Champions Cup | 2020/12/12 17:30 | Montpellier v Leinster | W | 14-35 |
Away History
| Pro 14 Rugby | 2021/02/26 20:00 | Ulster v Ospreys | L | 21-7 |
| Pro 14 Rugby | 2021/02/20 17:15 | Ospreys v Zebre Parma | W | 10-0 |
| Pro 14 Rugby | 2021/01/24 15:00 | Connacht v Ospreys | W | 20-26 |
| Pro 14 Rugby | 2021/01/09 17:15 | Newport Gwent Dragons v Ospreys | W | 20-28 |
| Pro 14 Rugby | 2021/01/01 19:35 | Cardiff Blues v Ospreys | W | 3-17 |
| Pro 14 Rugby | 2020/12/26 17:15 | Ospreys v Scarlets | L | 14-16 |
| European Rugby Challenge Cup | 2020/12/19 20:00 | Worcester Warriors v Ospreys | W | 29-38 |
| European Rugby Challenge Cup | 2020/12/12 20:00 | Ospreys v Castres | W | 39-15 |