| Floodlit Cup | |
| Year: | 1989–90 |
| Num Teams: | 16 |
| Defending Champions: | Glenavon |
| Winners: | Glentoran (2nd win) |
| Second: | Linfield |
| Matches: | 23 |
| Goals: | 71 |
| Prev Season: | 1988–89 |
| Next Season: | 1990–91 |
The 1989–90 Floodlit Cup was the 3rd edition of the Floodlit Cup, a cup competition in Northern Irish football.[1]
Glentoran won the tournament for the 2nd time, defeating Linfield 4–2 in the final.[2] [3]
Teams that were at home in the first leg listed on the left.|}
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