| Duncan Robertson | |
| Birth Name: | Duncan John Robertson |
| Birth Date: | 6 February 1947 |
| Birth Place: | Dunedin, New Zealand |
| Ru Position: | First five-eighth Second five-eighth Fullback |
| Height: | 1.780NaN0 |
| Weight: | 78kg (172lb) |
| Repyears1: | 1974–1977 |
| Repcaps1: | 10 |
| Reppoints1: | 8 |
| Ru Province1: | Otago |
| Ru Provinceyears1: | 1966–1978 |
| Ru Provinceapps1: | 104 |
| School: | King Edward Technical College |
Duncan John Robertson (born 6 February 1947) is a former New Zealand rugby union player. He represented Otago at a provincial level, making 104 appearances and playing most of his games at second five-eighth. Robertson was a member of the New Zealand national side, the All Blacks, from 1973 to 1977, playing mostly as a first five-eighth, but also as a fullback towards the end of his career. He played 30 matches for the All Blacks including 10 internationals.[1]