| Petrus Van Theemsche | |
| Fullname: | Petrus Van Theemsche |
| Birth Date: | 15 August 1915 |
| Birth Place: | Lokeren, Belgium |
| Death Place: | Lokeren, Belgium |
| Role: | Rider |
Petrus Van Theemsche (15 August 1915 - 28 May 1999) was a Belgian racing cyclist.[1] He won the Belgian national road race title in 1938.[2]