The entry list for the fourth round of the 2026 FIA European Rallycross Championship for RX3 Drivers on July 18-19 at Mondello Park in Ireland looks as follows:
| No. | Driver | Car | Competitor |
|---|---|---|---|
| 7 |  Sámuel Kovács | Škoda Fabia Mk3 | Korda Racing Kft. |
| 9 |  Dylan Dufas | VW Polo Mk6 | Dufas |
| 14 |  Libor Teješ | Audi A1 | Libor Teješ |
| 15 | Julien Meunier | Audi A1 | Julien Meunier |
| 21 |  Audrius Kragas | Škoda Fabia Mk2 | Motorsport Šiauliai |
| 22 | Rytis Gurklys | Audi A1 | NG Racing Team |
| 26 |  Nicolas Geleyns | Audi A1 |  Volland Racing |
| 88 | Václav Tůma | Škoda Fabia Mk3 | Václav Tůma |
| 95 |  Markus Røsrud | Škoda Fabia Mk2 | Markus Røsrud |
| 121 |  Tiago Ferreira | Ford Fiesta Mk7 | Tiago Ferreira |