| Gold Cup | |
| Year: | 1920–21 |
| Country: |  Ireland |
| Num Teams: | 5 |
| Defending Champions: | Distillery |
| Winners: | Linfield (4th win) |
| Second: | Glenavon |
| Matches: | 20 |
| Goals: | 56 |
| Prev Season: | 1919–20 |
| Next Season: | 1921–22 |
The 1920–21 Gold Cup was the 9th edition of the Gold Cup, a cup competition in Irish football.[1]
The tournament was won by Linfield for the 4th time.[2] [3]