1998 Sligo Senior Football Championship
This is a round-up of the 1998 Sligo Senior Football Championship. Eastern Harps atoned for the previous year's heavy defeat to Tourlestrane, reversing the result to win their fourth title. This was the last Championship to date to be played under the knockout system., as the round-robin section would be introduced for 1999.
First round
| Game | Date | Venue | Team A | Score | Team B | Score |
| Sligo SFC First Round | 25 July | Markievicz Park | St. Mary’s | 4-16 | Enniscrone | 0-4 |
| Sligo SFC First Round | 26 July | Ballymote | Eastern Harps | 2-13 | Bunninadden | 0-11 |
| Sligo SFC First Round | 26 July | Enniscrone | Curry | 0-13 | Easkey | 0-5 |
| Sligo SFC First Round | 26 July | Markievicz Park | Tourlestrane | 1-19 | Drumcliffe/Rosses Point | 0-8 |
Quarter finals
| Game | Date | Venue | Team A | Score | Team B | Score |
| Sligo SFC Quarter Final | 9 August | Markievicz Park | Tourlestrane | 1-16 | Coolera/Strandhill | 1-7 |
| Sligo SFC Quarter Final | 9 August | Markievicz Park | Curry | 0-12 | Shamrock Gaels | 1-7 |
| Sligo SFC Quarter Final | 9 August | Ballymote | Eastern Harps | 0-16 | Cloonacool | 0-4 |
| Sligo SFC Quarter Final | 9 August | Ballymote | Tubbercurry | 2-10 | St. Mary’s | 1-10 |
Semi-finals
| Game | Date | Venue | Team A | Score | Team B | Score |
| Sligo SFC Semi-Final | 6 September | Markievicz Park | Eastern Harps | 3-11 | Tubbercurry | 0-8 |
| Sligo SFC Semi-Final | 6 September | Markievicz Park | Tourlestrane | 1-11 | Curry | 1-10 |