| Syd Hayhow | |
| Fullname: | Sydney Russell Hayhow |
| Birth Date: | 29 June 1906 |
| Birth Place: | Northcote, Victoria |
| Death Place: | Bentleigh East, Victoria |
| Height: | 182 cm |
| Weight: | 87 kg |
| Statsend: | 1928 |
| Years1: | 1927 |
| Games Goals1: | 9 (0) |
| Years2: | 1928 |
| Games Goals2: | 6 (0) |
| Games Goalstotal: | 15 (0) |
Sydney Russell Hayhow (29 June 1906 – 28 June 1978) was an Australian rules footballer who played with St Kilda and Hawthorn in the Victorian Football League (VFL).[1]