| 10th January |
Athletics Wicklow Indoor Track & Field Championship |
Sport Ireland National Indoor Arena |
| 11th - 14th January |
Volleyball Ireland CEV SCA U18 Championship (M&F) |
Sport Ireland National Indoor Arena |
| 17th - 18th January |
Athletics Ireland National Indoor AAI Games & National Indoor Combined Events |
Sport Ireland National Indoor Arena |
| 17th - 18th January |
Future Cheer Treasure Ireland Event |
Sport Ireland National Indoor Arena |
| 23rd - 25th January |
Swim Ireland Leinster Open Meet |
Sport Ireland National Aquatic Centre |
| 24th - 25th January |
Volleyball Ireland 2026 Youth Championships |
Sport Ireland National Indoor Arena |
| 31st January - 1st February |
Badminton Ireland VICTOR Irish Senior Nationals 2026 |
Sport Ireland National Indoor Arena |
