| Robert Duncan | |
| Full Name: | Robert Francis Hugh Duncan |
| Birth Date: | 10 June 1896 |
| Birth Place: | Cardiff, Wales |
| Death Place: | Henley, England |
| Position: | Front row |
| Repyears1: | 1922 |
| Repcaps1: | 3 |
| Reppoints1: | 0 |
Robert Francis Hugh Duncan (10 June 1896 – 19 October 1981) was an English international rugby union player.
A Cardiff-born forward, Duncan played rugby with Guy's Hospital RFC in London and was capped three times for England during the 1922 Five Nations Championship, playing matches against Ireland, France and Scotland.[1] [2] He also toured Wales with the Barbarians and represented Middlesex in county fixtures.[3]