| Bill Allen | |
| Fullname: | William Miller Allen |
| Birth Date: | 7 July 1889 |
| Birth Place: | Ballarat, Victoria |
| Death Place: | Ringwood, Victoria |
| Originalteam: | South Yarra |
| Height: | 188 cm |
| Weight: | 85 kg |
| Statsend: | 1923 |
| Years1: | 1910–15, 1919–23 |
| Club1: | Melbourne |
| Games Goals1: | 142 (54) |
William Miller Allen (7 July 1889 – 13 November 1948) was an Australian rules footballer who played for Melbourne in the Victorian Football League (VFL).
Allen was a ruckman and played during a dour period for the club. He was with Melbourne from 1910 to 1923 but missed the 1916, 1917 and 1918 seasons due to the war. During the summer of 1914–15 he played a couple of first class cricket matches for Victoria in the Sheffield Shield.