| Dirk Heirweg | |
| Fullname: | Dirk Heirweg |
| Birth Date: | 27 September 1955 |
| Birth Place: | Zele, Belgium |
| Discipline: | Road |
| Role: | Rider |
| Proyears1: | 1978 |
| Proteam1: | Flandria-Velda-Lano |
| Proyears2: | 1979–1980 |
| Proteam2: | DAF Trucks |
| Proyears3: | 1981 |
| Proteam3: | Boston Mavic |
| Proyears4: | 1982–1985 |
| Proteam4: | Safir-Van de Ven |
| Proyears5: | 1986–1987 |
| Proteam5: | TeVe Blad-Eddy Merckx |
| Proyears6: | 1988–1989 |
| Proteam6: | Isoglass |
| Proyears7: | 1990–1991 |
| Proyears8: | 1992 |
| Proteam8: | Assur Carpets-Willy Naessens-Euroclean |
Dirk Heirweg (born 27 September 1955) is a Belgian former racing cyclist. He competed in the individual road race and team time trial events at the 1976 Summer Olympics.[1]