2005–06 Irish League Cup

Glentoran were the defending champions after their fifth League Cup win last season; a 2–1 victory over Linfield in the previous final.

This season both clubs reached the final again but this time Linfield came out on top by defeating the Glens 3–0 to lift the cup for the eighth time, with Glenn Ferguson scoring a Hat-trick.

This was the seventh, and to date, last time that both clubs met in the final.

The top two clubs from each group then advanced to the quarter-finals where they played a single knock-out tie against another quarter-finalist.

The semi-finals were played in the same format with the two winners of the ties advancing to the single match final.