| Billy Lynch | |
| Fullname: | William Mayson Lynch |
| Birth Date: | 14 April 1909 |
| Birth Place: | Kensington, Victoria |
| Death Place: | Ivanhoe, Victoria |
| Height: | 188 cm |
| Weight: | 84 kg |
| Position: | Defence / Follower |
| Statsend: | 1931 |
| Years1: | 1927–1929 |
| Games Goals1: | 36 (4) |
| Years2: | 1930–1931 |
| Games Goals2: | 18 (1) |
| Games Goalstotal: | 54 (5) |
William Mayson Lynch (14 April 1909 – 21 March 1985) was an Australian rules footballer who played with North Melbourne and Essendon in the Victorian Football League (VFL).[1]