| Year: | 2018 |
| Dates: | 2 June – 16 September 2018 |
| Teams: | 12 |
| Connacht: | Galway |
| Munster: | Cork |
| Leinster: | Dublin |
| Ulster: | Donegal |
| Matches: | 27 |
| Team: | Dublin |
| Titles: | 3rd |
| Captain: | Sinéad Aherne |
| Manager: | Mick Bohan |
| Team2: | Cork |
| Captain2: | Ciara O'Sullivan |
| Manager2: | Ephie Fitzgerald |
| Previous: | 2017 |
| Next: | 2019 |
The 2018 All-Ireland Senior Ladies' Football Championship was the 45th edition of the Ladies' Gaelic Football Association's premier inter-county Ladies' Gaelic Football tournament. It was known for sponsorship reasons as the TG4 All-Ireland Senior Ladies' Football Championship.[1] [2] [3]
Connacht, Leinster, Munster and Ulster each organise their provincial championship. All matches are knockout.
In 2018, a new round-robin format was introduced in the All-Ireland championship. The 12 teams are drawn into four groups of three teams, with each group containing one provincial champion, one provincial beaten finalist, and one beaten provincial semi-finalist (two each from Munster and Ulster). Each team plays the other teams in its group once.
There are three rounds in each group with the provincial champions playing in rounds two and three. Three group points are awarded for a win and one for a draw. The winners and runners-up in each group compete in the four All-Ireland quarter-finals.
| Team | Pld | W | D | L | Group Points | Score Difference | |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 0 | 0 | 6 | +4 | ||
| 2 | 1 | 0 | 1 | 3 | +5 | ||
| 2 | 0 | 0 | 2 | 0 | –9 |
| Team | Pld | W | D | L | Group Points | Score Difference | |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 0 | 0 | 6 | +28 | ||
| 2 | 0 | 1 | 1 | 1 | –12 | ||
| 2 | 0 | 1 | 1 | 1 | –16 |
| Team | Pld | W | D | L | Group Points | Score Difference | |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 0 | 0 | 6 | +42 | ||
| 2 | 1 | 0 | 1 | 3 | –25 | ||
| 2 | 0 | 0 | 2 | 0 | –17 |
| Team | Pld | W | D | L | Group Points | Score Difference | |
|---|---|---|---|---|---|---|---|
| 2 | 2 | 0 | 0 | 6 | +22 | ||
| 2 | 1 | 0 | 1 | 3 | –2 | ||
| 2 | 0 | 0 | 2 | 0 | –20 |
Each of the four winners from the group stage play one of the four runners-up.
See main article: 2018 All-Ireland Senior Ladies' Football Championship final.
The provincial championship winners are exempt from relegation even if they finish bottom of their group. The number of relegation play-off games is therefore dependent on the number of non provincial winners who finish bottom of their group. The losers of the relegation play-offs play in next year's intermediate championship.
Tipperary are relegated to the All-Ireland Intermediate Ladies' Football Championship for 2019.