2023–24 NIFL Premiership

The 2023–24 NIFL Premiership (known as the Sports Direct Premiership for sponsorship reasons) was the 16th season of the NIFL Premiership (the highest level of league football in Northern Ireland), the 123rd season of Irish League football overall, and the 11th season of the league operating as part of the Northern Ireland Football League. The 38-game season commenced on 4 August 2023 and concluded on 27 April 2024.

The champions (Larne, their second consecutive title win) qualified for the 2024–25 UEFA Champions League first qualifying round. The 2023–24 Irish Cup winners (Cliftonville) qualified for the 2024–25 UEFA Conference League second qualifying round, with the second-placed team (Linfield) and Conference League play-off winners (Crusaders) qualifying for the first qualifying round. The eleventh-placed team (Ballymena United) qualified for the NIFL Premiership play-off, winning and retaining their place in the league. The bottom-placed team (Newry City) were relegated to the 2024–25 NIFL Championship.

Teams
The league consisted of twelve teams; eleven teams remaining from the previous season, and one team promoted from the NIFL Championship. Loughgall were promoted as champions of the 2022–23 NIFL Championship (returning to the top-flight for the first time since 2007), replacing the 2022–23 NIFL Premiership bottom-placed team Portadown. Larne entered the season as defending champions, having won their first league title in the previous season.

Matches 1–33
For matches 1–22, each team plays every other team twice (home and away). For matches 23–33, each team plays every other team for the third time (either at home or away).

Matches 34–38
For the final five matches, the table splits into two halves, with the top six teams forming Section A and the bottom six teams forming Section B. Each team plays every other team in their respective section once. The fixtures are reversed from those played during rounds 23–33, ensuring that teams have played every other team in their respective section twice at home and twice away overall throughout the season.

Conference League play-off
Clubs placed 3rd–7th compete for the second and final place in the 2024–25 Conference League first qualifying round. The play-offs are one-off matches, with the higher-ranked teams given home advantage and extra time and penalties used to determine the winner if necessary. Since the 2023–24 Irish Cup winners finished in the top three, the 3rd-placed team qualified automatically for the Conference League and the spot was vacated.

NIFL Premiership play-off
The eleventh-placed club (Ballymena United) faced the second-placed club from the 2023–24 NIFL Championship (Institute) in a two-legged play-off for the final place in the following season's Premiership.