| Bill Maslen | |
| Fullname: | William Batt Maslen |
| Birth Date: | 1 January 1916 |
| Birth Place: | Northcote, Victoria |
| Death Place: | Fitzroy, Victoria |
| Originalteam: | Preston |
| Height: | 173 cm |
| Weight: | 73 kg |
| Statsend: | 1949 |
| Years1: | 1935–39 |
| Club1: | Preston (VFA) |
| Games Goals1: | 50 (1) |
| Years2: | 1939–40 |
| Games Goals2: | 20 (0) |
| Years3: | 1940–49 |
| Club3: | Preston (VFA) |
| Games Goals3: | 122 (52) |
William Batt Maslen (1 January 1916 – 8 October 1974) was an Australian rules footballer who played with St Kilda in the Victorian Football League (VFL).[1]