| Robert De Middeleir | |
| Birth Date: | 1938 8, df=yes |
| Birth Place: | Oordegem, Belgium |
| Role: | Rider |
| Proyears1: | 1962–1963 |
| Proteam1: | Wiel's – Groene Leeuw |
| Proyears2: | 1964–1965 |
| Proteam2: | Mercier – BP – Hutchinson |
| Proyears3: | 1966 |
| Proteam3: | Libertas |
| Proyears4: | 1966 |
| Proteam4: | Flandria |
| Proyears5: | 1967 |
| Proteam5: | Terrot – Wacquier |
Robert De Middeleir (26 August 1938 – 8 July 2016) was a Belgian cyclist. Professional from 1962 to 1967, he notably won the Omloop Het Nieuwsblad in 1962.