| Sheila Armstrong | |
| Birth Date: | 26 November 1949 |
| Birth Place: | Upland, California, United States |
| Death Place: | Los Angeles, California, United States |
| Sport: | Fencing |
| Show-Medals: | yes |
Sheila Armstrong (November 26, 1949 - May 18, 2010) was an American fencer. She competed in the women's individual and team foil events at the 1976 Summer Olympics.[1] She also won the women's team foil bronze medal at the 1975 Pan American Games.[1]