| Yellow | Players | Sections | Competition |
|---|---|---|---|
| 2 | Cameron Dummigan | Group Section | UEFA Europa League 20/21 |
| 2 | Daniel Cleary | Group Section | UEFA Europa League 20/21 |
| 2 | Brian Gartland | Group Stage | UEFA Europa League 16/17 |
| 2 | Stephen O'Donnell | Group Stage | UEFA Europa League 16/17 |
| 1 | Brian Gartland | Group Section | UEFA Europa League 20/21 |
| 1 | Sean Hoare | Group Section | UEFA Europa League 20/21 |
| 1 | Ciaran Kilduff | Group Stage | UEFA Europa League 16/17 |
| 1 | Daryl Horgan | Group Stage | UEFA Europa League 16/17 |
| 1 | Ronan Finn | Group Stage | UEFA Europa League 16/17 |
| 1 | Robert Benson | Group Stage | UEFA Europa League 16/17 |
| 1 | Patrick McEleney | Group Stage | UEFA Europa League 16/17 |
| 1 | Chris Shields | Group Stage | UEFA Europa League 16/17 |
| 1 | Gary Rogers | Group Stage | UEFA Europa League 16/17 |
UEFA Europa League 23/24 Top goal scorers