| Sylvia Hume | |
| Birth Date: | 1 February 1968 |
| Birth Place: | Auckland, New Zealand |
Sylvia Margaret Hume (born 1 February 1968), also known by her married name Sylvia Sinclair, is a New Zealand swimmer.
Hume won gold in 100 m backstroke at the 1986 Commonwealth Games in Edinburgh, Scotland.[1] She competed in two events at the 1988 Summer Olympics.[2] She retired from the sport at age 22.[3] She lives in Bath, England with her husband and their two sons.