| Noel O'Brien | |
| Fullname: | Noel William O'Brien |
| Birth Date: | 1956 12, df=y |
| Birth Place: | Islington, England |
| Years1: | 1974–1975 |
| Clubs1: | Arsenal |
| Caps1: | 0 |
| Goals1: | 0 |
| Years2: | 1975–1976 |
| Caps2: | 7 |
| Goals2: | 0 |
| Years3: | 1976 |
| Clubs3: | Wimbledon |
| Years4: | 1976 |
| Caps4: | 0 |
| Goals4: | 0 |
| Totalcaps: | 7 |
| Totalgoals: | 0 |
Noel William O'Brien (born 18 December 1956) is an English former professional footballer who played in the Football League for Mansfield Town.