| William Rayian | |
| Nationality: | Kenyan |
| Sport: | Track and Field |
| Event: | 400m |
| Birth Date: | 13 May 1994 |
William Rayian (born 13 May 1994) is a Kenyan athlete.[1]
Rayian won a bronze medal as part of the Kenyan 4 x 400m relay team at the 2022 Commonwealth Games. [2]