| Irish League Cup | |
| Other Titles: | Wilkinson Sword League Cup |
| Year: | 1997–98 |
| Num Teams: | 32 |
| Defending Champions: | Crusaders |
| Winners: | Linfield (4th win) |
| Second: | Glentoran |
| Matches: | 31 |
| Goals: | 120 |
| Prev Season: | 1996–97 |
| Next Season: | 1998–99 |
The 1997–98 Irish League Cup (known as the Wilkinson Sword League Cup for sponsorship reasons) was the 12th edition of the Irish League Cup, Northern Ireland's secondary football knock-out cup competition. It concluded on 9 September 1997 with the final.
Crusaders were the defending champions after their first League Cup win last season; a 1–0 victory over Glentoran in the previous final. This season they went out in the quarter-finals to eventual winners Linfield, who lifted their fourth League Cup with a 1–0 victory over arch-rivals Glentoran in the final, condemning the Glens to their second successive League Cup final defeat.[1] [2]
This was the last competition to feature clubs from the Irish League B Division. From the following season onwards, the competition would only be open to senior clubs in the top two divisions.
|}1 Larne were disqualified for fielding an ineligible player. Cookstown United were reinstated.
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