2019 League of Ireland Premier Division

The 2019 League of Ireland Premier Division is the 35th season of the League of Ireland Premier Division. The league began in February 2019 and concluded in October 2019. Fixtures were announced in December 2018.

On 23 September, Dundalk won the title after a 3–2 win over Shamrock Rovers.

Overview
The Premier Division consists of 10 teams. Each team plays each other four times for 36 matches in the season.

UCD, the 2018 First Division champion, were promoted to the league for the first time since 2014, and Finn Harps, winners of the promotion/relegation playoffs, were promoted to the league, returning after the absence in 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.

Matches 1–18
Teams played each other twice (once at home, once away).

Matches 19–36
Teams will play each other twice (once home, once away).

Promotion/relegation playoff
Finn Harps, who finished ninth in the Premier Division, faced the First Division's Drogheda United to determine which club would participate in the 2020 Premier Division.