UEFA Champions League 2020/21, First Qualifying Round |
 | 19.08.2020 |  | Celje | – | Dundalk |  | 3:0 (1:0) * |
| Hungary, Budapest |
UEFA Champions League 2019/20, Second qualifying round |
| 31.07.2019 |  | Qarabağ | – | Dundalk | | 3:0 (1:0) |
| Bakı |
UEFA Champions League 2019/20, Second qualifying round |
| 24.07.2019 | | Dundalk | – | Qarabağ | | 1:1 (0:1) |
| Dundalk |
UEFA Champions League 2019/20, First Qualifying Round |
| 17.07.2019 |  | Riga FC | – | Dundalk | | 0:0 aet,
pen. 4:5 |
| Rīga |
UEFA Champions League 2019/20, First Qualifying Round |
| 10.07.2019 | | Dundalk | – | Riga FC | | 0:0 |
| Dundalk |
UEFA Champions League 2017/18, Second qualifying round |
| 19.07.2017 |  | Rosenborg | – | Dundalk | | 2:1 aet
(1:1, 1:1) |
| Trondheim |
UEFA Champions League 2017/18, Second qualifying round |
| 12.07.2017 | | Dundalk | – | Rosenborg | | 1:1 (1:1) |
| Dundalk |
UEFA Champions League 2016/17, Play-off Round |
| 23.08.2016 |  | Legia Warszawa | – | Dundalk | | 1:1 (0:1) |
| Warszawa |
UEFA Champions League 2016/17, Play-off Round |
| 17.08.2016 | | Dundalk | – | Legia Warszawa | | 0:2 (0:0) |
| Dublin |
UEFA Champions League 2016/17, Third qualifying round |
| 02.08.2016 | | Dundalk | – | BATE |  | 3:0 (1:0) |
| Dublin |
UEFA Champions League 2016/17, Third qualifying round |
| 26.07.2016 | | BATE | – | Dundalk | | 1:0 (0:0) |
| Barysaw |
UEFA Champions League 2016/17, Second qualifying round |
| 20.07.2016 |  | FH | – | Dundalk | | 2:2 (1:0) |
| Hafnarfjörður |
UEFA Champions League 2016/17, Second qualifying round |
| 13.07.2016 | | Dundalk | – | FH | | 1:1 (0:0) |
| Dundalk |
UEFA Champions League 2015/16, Second qualifying round |
| 22.07.2015 | | Dundalk | – | BATE | | 0:0 |
| Dundalk |
UEFA Champions League 2015/16, Second qualifying round |
| 15.07.2015 | | BATE | – | Dundalk | | 2:1 (2:1) |
| Barysaw |
UEFA European Champions' Cup 1991/92, 1/16 finals |
| 02.10.1991 | | Dundalk | – | Kispesti Honvéd |  | 0:2 (0:2) |
| Dún Dealgan |
UEFA European Champions' Cup 1991/92, 1/16 finals |
| 18.09.1991 | | Kispesti Honvéd | – | Dundalk | | 1:1 (1:0) |
| Budapest |
UEFA European Champions' Cup 1988/89, 1/16 finals |
| 05.10.1988 |  | Crvena Zvezda | – | Dundalk | | 3:0 (1:0) |
| Belgrade |
UEFA European Champions' Cup 1988/89, 1/16 finals |
| 07.09.1988 | | Dundalk | – | Crvena Zvezda | | 0:5 (0:0) |
| Dún Dealgan |
UEFA European Champions' Cup 1982/83, 1/16 finals |
| 28.09.1982 |  | Liverpool | – | Dundalk | | 1:0 (0:0) |
| Liverpool |
UEFA European Champions' Cup 1982/83, 1/16 finals |
| 14.09.1982 | | Dundalk | – | Liverpool | | 1:4 (0:3) |
| Dún Dealgan |
UEFA European Champions' Cup 1979/80, 1/8 finals |
| 07.11.1979 | | Dundalk | – | Celtic |  | 0:0 |
| Dún Dealgan |
UEFA European Champions' Cup 1979/80, 1/8 finals |
| 24.10.1979 | | Celtic | – | Dundalk | | 3:2 (3:1) |
| Glasgow |
UEFA European Champions' Cup 1979/80, 1/16 finals |
| 26.09.1979 |  | Hibernians Paola | – | Dundalk | | 1:0 (0:0) |
| Belt Valletta |
UEFA European Champions' Cup 1979/80, 1/16 finals |
| 19.09.1979 | | Dundalk | – | Hibernians Paola | | 2:0 (1:0) |
| Dún Dealgan |
UEFA European Champions' Cup 1979/80, Preliminary Round |
| 05.09.1979 |  | Linfield | – | Dundalk | | 0:2 (0:1) |
| Netherlands, Haarlem |
UEFA European Champions' Cup 1979/80, Preliminary Round |
| 29.08.1979 | | Dundalk | – | Linfield | | 1:1 (0:0) |
| Dún Dealgan |
UEFA European Champions' Cup 1976/77, 1/16 finals |
| 29.09.1976 |  | PSV | – | Dundalk | | 6:0 (3:0) |
| Eindhoven |
UEFA European Champions' Cup 1976/77, 1/16 finals |
| 15.09.1976 | | Dundalk | – | PSV | | 1:1 (1:0) |
| Dún Dealgan |
UEFA European Champions' Cup 1967/68, 1/16 finals |
| 11.10.1967 | | Vasas SC | – | Dundalk | | 8:1 (4:1) |
| Budapest |
UEFA European Champions' Cup 1967/68, 1/16 finals |
| 20.09.1967 | | Dundalk | – | Vasas SC | | 0:1 (0:0) |
| Dún Dealgan |
UEFA European Champions' Cup 1963/64, 1/16 finals |
| 25.09.1963 |  | Zürich | – | Dundalk | | 1:2 (0:1) |
| Zürich |
UEFA European Champions' Cup 1963/64, 1/16 finals |
| 11.09.1963 | | Dundalk | – | Zürich | | 0:3 (0:1) |
| Dublin |
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