| Pieter van Senus | |
| Fullname: | Pieter François van Senus |
| Sport: | Swimming, water polo |
| Birth Date: | 8 December 1903 |
| Birth Place: | Rotterdam, Netherlands |
| Death Place: | Rotterdam, Netherlands |
| Club: | Amsterdamsche Zwemclub 1870 |
Pieter van Senus (8 December 1903 - 23 September 1968) was a Dutch swimmer and water polo player.[1] He competed in the men's 100 metre backstroke event at the 1924 Summer Olympics and the water polo at the 1928 Summer Olympics.[2]
Pieter is the younger brother of water polo player Han van Senus, who was part of the national team at the 1924 Summer Olympics and also at the 1928 Summer Olympics.