| City Cup | |
| Year: | 1955–56 |
| Num Teams: | 12 |
| Defending Champions: | Glenavon |
| Winners: | Glenavon (3rd win) |
| Second: | Coleraine |
| Matches: | 69 |
| Goals: | 268 |
| Prev Season: | 1954–55 |
| Next Season: | 1956–57 |
The 1955–56 City Cup was the 51st edition of the City Cup, a cup competition in Northern Irish football.[1]
The tournament was won by Glenavon for the 3rd time and 2nd consecutive season. They defeated Coleraine 4–0 in a test match at Grosvenor Park after both teams finished level on points in the group standings.[2] [3]