2023 League of Ireland Premier Division

The 2023 League of Ireland Premier Division, known as the SSE Airtricity League Premier Division for sponsorship reasons, was the 39th season of the League of Ireland Premier Division, the top Irish league for association football clubs since its establishment in 1985.

The winners (Shamrock Rovers, their fourth consecutive title and twenty-first overall) qualified for the 2024–25 Champions League first qualifying round. The 2023 FAI Cup winners (St Patrick's Athletic) qualified for the 2024–25 Conference League second qualifying round. The runners-up (Derry City) and fourth-placed team (Shelbourne) qualified for the 2024–25 Conference League first qualifying round. The ninth-placed team (Cork City) qualified for the League of Ireland Premier Division play-off, losing and being relegated to the 2024 League of Ireland First Division. They were joined by the bottom-placed team (UCD).

Teams
Ten teams competed in the league – the top nine teams from the previous season and the one team promoted from the First Division. The promoted team was Cork City, after a top flight absence of two years. They replaced Finn Harps who were relegated after four consecutive seasons in the top flight.

Shamrock Rovers were the defending champions, having won their twentieth title the previous season.

Personnel and kits
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.

Results
Teams play each other four times (twice at home and twice away).

Top scorers

 * Max Mata joined Shrewsbury Town on 4 August 2023.
 * Freddie Draper returned to Lincoln City on 30 June 2023

League of Ireland Premier Division play-off
The ninth-placed team (Cork City) qualified for a play-off alongside the second, third, fourth, and fifth-placed teams from the 2023 League of Ireland First Division (Athlone Town, Cobh Ramblers, Waterford, and Wexford).

The First Division teams contested the quarter and semi-finals. The quarter-finals were held over two legs, with the second-placed team (Waterford) facing the fifth-placed team (Athlone Town) and the third-placed team (Cobh Ramblers) facing the fourth-placed team (Wexford). The quarter-final winners then contested the semi-finals, with the winners ultimately facing the ninth-placed League of Ireland Premier Division team for the final place in the 2024 League of Ireland Premier Division.