| Season: | 2024 |
| Dates: | February 2024 – October 2024 |
| Competition: | League of Ireland First Division |
| Winners: | Cork City (3rd title) |
| Prevseason: | 2023 |
The 2024 League of Ireland First Division, known as the SSE Airtricity Men's First Division for sponsorship reasons,[1] was the 40th season of the League of Ireland First Division. The competition began on 16 February 2024,[2] and concluded in October 2024.[3]
Cork City won the title for the third time.[4]
The teams relegated to the First Division were Cork City (losers of the 2023 League of Ireland Premier Division play-off) and UCD (the bottom-placed team of the 2023 League of Ireland Premier Division). They replaced the two teams promoted from the 2023 League of Ireland First Division (champions Galway United and Premier Division play-off winners Waterford).
| Team | Location | Stadium | Capacity |
|---|---|---|---|
| 5,000 | |||
| 4,000 | |||
| 3,000 | |||
| 7,485 | |||
| 6,000 | |||
| 1,200 | |||
| 5,097 | |||
| 5,000 | |||
| 3,000 | |||
| 2,500 | |||
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.
| Team | Manager | Captain | Kit manufacturer | Shirt sponsor | |
|---|---|---|---|---|---|
| Athlone Town | Dario Castelo |  Oisín Duffy |  Nike | Valeo Futbol | |
| Bray Wanderers | Vacant | Killian Cantwell | Capelli Sport | OutdoorLiving.ie | |
| Cobh Ramblers | Gary Hunt | Jason Abbott | Uhlsport | McCarthy Insurance Group | |
| Cork City | Tim Clancy | Cian Coleman | Adidas | Zeus | |
| Finn Harps | Darren Murphy | Tony McNamee | Joma | So-Lo Stores | |
| Kerry | Conor McCarthy | Andy Spain | New Balance | Kerry Airport | |
| Longford Town | Wayne Groves | Shane Elworthy |  Macron | Bishopsgate | |
| Treaty United | Tommy Barrett | Mark Walsh | O'Neills | Trade Electric Group | |
| UCD | William O’Connor | Jack Keaney | O'Neills | Maples Group | |
| Wexford | James Keddy | Ethan Boyle | Macron | Campion Insurance |
Teams play each other four times (twice at home and twice away).
The ninth-placed team (Drogheda United) from the 2024 League of Ireland Premier Division qualified for a play-off alongside the second, third, fourth, and fifth-placed teams from the 2024 League of Ireland First Division (Athlone Town, Bray Wanderers, UCD, and Wexford).
The First Division teams contest the semi-finals and final. The semi-finals will be held over two legs, with the second-placed team facing the fifth-placed team and the third-placed team facing the fourth-placed team. The semi-final winners then contest the First Division final, with the winners ultimately facing the ninth-placed League of Ireland Premier Division team for the final place in the 2025 League of Ireland Premier Division.