| Competition: | League of Ireland |
| Dates: | 21 August 1926 – 7 May 1927 |
| Winners: | Shamrock Rovers (3rd title) |
| Matches: | 90 |
| Total Goals: | 376 |
| League Topscorer: | David Byrne John McMillan (17 goals each) |
| Biggest Home Win: | Shelbourne 9-0 Bray Unknowns |
| Biggest Away Win: | St. James's Gate 2-8 Shelbourne |
| Highest Scoring: | St. James's Gate 2-8 Shelbourne |
| Prevseason: | 1925–26 |
| Nextseason: | 1927–28 |
| Season: | 1926–27 |
The 1926–27 League of Ireland was the sixth season of the League of Ireland.
Shamrock Rovers won their third title.
It began on 21 August 1926 and ended on 7 May 1927. Shelbourne were the defending champions.
Pioneers were not re-elected to the League, while Dundalk GNR were elected.
| Team | Location | Stadium | |
|---|---|---|---|
| Sports Ground | |||
| Dublin (Phibsborough) | Dalymount Park | ||
| Woodbrook Ground | |||
| Dublin (The Liberties) | Richmond Park | ||
| Athletic Grounds | |||
| Ballinlough Road | |||
| Dublin (Crumlin) | Rutland Avenue | ||
| Dublin (Crumlin) | St. James's Park | ||
| Dublin (Milltown) | Glenmalure Park | ||
| Dublin (Ringsend) | Shelbourne Park |
| Player | Club | Goals | ||
|---|---|---|---|---|
| align=center rowspan=2 | 1 | David Byrne | Shamrock Rovers | 17 |
| John McMillan | Shelbourne | |||
| align=center rowspan=2 | 2 | Ned Brooks | Athlone Town | 14 |
| Bob Fullam | Shamrock Rovers |