| Gary Armstrong | |
| Fullname: | Gary Stephen Armstrong |
| Birth Date: | 1958 1, df=y |
| Birth Place: | West Ham, England |
| Position: | Defender |
| Years1: | 1976–1980 |
| Years2: | 1980–1982 |
| Years3: | 1981 |
| Years6: | 1983–1984 |
| Years7: | 1984–? |
| Clubs3: | Gravesend & Northfleet (loan) |
| Clubs12: | Harlow Town |
| Caps1: | 86 |
| Caps2: | 71 |
| Caps3: | 6 |
| Caps4: | 120 |
| Caps5: | 7 |
| Caps6: | 8 |
| Caps7: | 31 |
| Goals1: | 2 |
| Goals2: | 0 |
| Goals3: | 0 |
| Goals4: | 18 |
| Goals5: | 1 |
| Goals6: | 0 |
| Goals7: | 1 |
| Youthyears1: | 1975–1976 |
| Youthclubs1: | Gillingham |
Gary Stephen Armstrong (born 2 January 1958) is an English former professional footballer. His clubs included Wimbledon, Crewe Alexandra and Gillingham.[1]