The 1990–91 Ulster Cup was the 43rd edition of the Ulster Cup, a cup competition in Northern Irish football.
Portadown won the tournament for the 1st time, defeating Glenavon 3–2 on penalties after both the final replay and original final finished in 1-1 draws.
Group standings Section A
Section B
Section C
Section D
Quarter-finals
Semi-finals
Final
Replay
References
External links Ulster Cup Winners