| René Dillen | |
| Birth Date: | 18 June 1951 |
| Birth Place: | Wilrijk, Belgium |
| Currentteam: | Retired |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1973–1976 |
| Proteam1: | Sonolor |
| Proyears2: | 1977 |
| Proteam2: | Lejeune–BP |
| Proyears3: | 1978 |
| Proteam3: | C&A |
| Proyears4: | 1979 |
René Dillen (born 18 June 1951) is a Belgian former professional racing cyclist. He rode in five editions of the Tour de France.[1]