1990–91 Irish Cup

1990–91 Irish Cup

Country	Northern Ireland
Teams	32
Champions	Portadown (1st win)
Runners-up	Glenavon
Matches played	36
Goals scored	125 (3.47 per match)
← 1989–90 1991–92 →

The 1990–91 Irish Cup was the 111th edition of Northern Ireland's premier football knock-out cup competition. It concluded on 4 May 1991 with the final.

Glentoran were the defending champions after winning their 15th Irish Cup last season, defeating Portadown 3–0 in the 1990 final. This season Portadown went one better by winning their first Irish cup in their fifth appearance in the final. They defeated Glenavon 2–1 in the final.

Fifth round

Team 1	Score	Team 2
Ballinamallard United	0–4	Glentoran
Brantwood	0–2	Glenavon
Carrick Rangers	2–1	Shorts
Chimney Corner	1–5	Ballyclare Comrades
Cliftonville	2–1	Dundela
Coleraine	3–1	Banbridge Town
Cookstown United	0–1	Donegal Celtic
Crewe United	0–3	Coagh United
Distillery	0–1	Crusaders
Dungannon Swifts	1–3	Ards
Dunmurry Recreation	1–3	Bangor
Larne	4–1	East Belfast
Linfield	1–1	Harland & Wolff Welders
Omagh Town	3–2	Ballymena United
Portadown	0–0	Newry Town
Tobermore United	2–1	Loughgall

Replays

Team 1	Score	Team 2
Harland & Wolff Welders	1–4	Linfield
Newry Town	0–2	Portadown

Sixth round

Team 1	Score	Team 2
Ards	0–0	Donegal Celtic
Carrick Rangers	1–3	Larne
Cliftonville	0–0	Crusaders
Coagh United	0–7	Ballyclare Comrades
Glenavon	2–0	Bangor
Glentoran	9–1	Tobermore United
Linfield	2–0	Coleraine
Portadown	3–1	Omagh Town

Replays

Team 1	Score	Team 2
Crusaders	3–2	Cliftonville
Donegal Celtic	0–2	Ards

Quarter-finals

Team 1	Score	Team 2
Ards	3–2	Linfield
Crusaders	2–4	Portadown
Glenavon	4–0	Ballyclare Comrades
Larne	1–1	Glentoran

Replay

Team 1	Score	Team 2
Glentoran	4–1	Larne

Semi-finals

Team 1	Score	Team 2
Ards	1–2	Portadown
Glenavon	3–1	Glentoran

Final

Portadown v Glenavon

4 May 1991

Portadown	2 – 1	Glenavon
	Report

Windsor Park, Belfast