| Robert John McMillan | |
| Birth Date: | 1857 11, df=y |
| Birth Place: | Lima, Peru[1] |
| Death Date: | 1928 (aged 70–71) |
| Death Place: | Swansea, Wales |
| Years1: | 1881 |
| Clubs1: | Shrewsbury Engineers |
| Nationalyears1: | 1881 |
| Nationalteam1: | Wales |
| Nationalcaps1: | 2 |
| Nationalgoals1: | 0 |
Robert McMillan (16 November 1857 – 1928) was a Welsh international footballer. He was part of the Wales national football team, playing 2 matches. He played his first match on 26 February 1881 against England and his last match on 14 March 1881 against Scotland.[2] At Club level he played for Shrewsbury Engineers.[3] McMillan died in 1928.[2]