The 2021 League of Ireland Premier Division, known as the SSE Airtricity League Premier Division for sponsorship reasons,[1] was the 37th season of the League of Ireland Premier Division, the top Irish league for association football clubs since its establishment in 1985. Shamrock Rovers were the defending champions,[2] having won their sixth league title the previous season. Shamrock Rovers went on to retain the title.[3][4]
Ten teams compete in the league – the top eight teams from the previous season and the two teams promoted from the First Division. The promoted teams are Drogheda United and Longford Town, after respective top flight absences of four and five years. They replaced Cork City (relegated after nine years in the top flight), and Shelbourne (relegated via play-off after only a year back in the top flight).[6][7]
^Since the winners of the 2021 FAI Cup (St Patrick's Athletic) qualified for European competition based on their league position, the final spot awarded to the Cup winner passed to the next best-placed team, i.e. fourth-placed team.
Positions by round
The table lists the positions of teams after each week of matches. In order to preserve chronological evolvements, any postponed matches are not included in the round at which they were originally scheduled but added to the full round they were played immediately afterward.
Source: [1], Extratime.ie Legend: Blue = home team win; Yellow = draw; Red = away team win. For upcoming matches, an "a" indicates there is an article about the rivalry between the two participants.
*NoteSligo Rovers were awarded a 3–0 victory by the FAI after Waterford opted out of playing the game due to COVID-19 cases in their squad.[9]
Source: [2], Extratime.ie Legend: Blue = home team win; Yellow = draw; Red = away team win. For upcoming matches, an "a" indicates there is an article about the rivalry between the two participants.