Back League of Ireland First Division Czech League of Ireland First Division Danish Primera División de Irlanda Spanish لیگ دسته اول فوتبال ایرلند Persian Irlannin 1. divisioona Finnish League of Ireland First Division Irish Irska prva liga Croatian First Division (Irlanda) Italian リーグ・オブ・アイルランド・ファーストディビジョン Japanese Airijos lygos I divizionas Lithuanian
| Founded | 1985 |
|---|---|
| Country | Ireland |
| Number of clubs | 10 |
| Level on pyramid | 2 |
| Promotion to | League of Ireland Premier Division |
| Domestic cup(s) | FAI Cup |
| League cup(s) | League of Ireland Cup |
| Current champions | Cork City (2nd title) (2024) |
| Most championships | Drogheda United (5) |
| Website | SSEAirtricityLeague.ie |
| Current: 2025 League of Ireland First Division | |
The League of Ireland First Division, also known as the SSE Airtricity League First Division for sponsorship reasons, is the second-highest division in both the League of Ireland and the Republic of Ireland football league system. The division was formed in 1985 as it replaced the League of Ireland B Division as the League of Ireland's second level division. Since 2003 the First Division has operated as a summer league. The division is contested by 10 clubs.