| Gerald Ryan | |
| Fullname: | Gerald John Ryan |
| Birth Date: | 24 May 1887 |
| Birth Place: | Horsham, Victoria |
| Death Place: | Tidworth, Wiltshire, England |
| Originalteam: | Horsham |
| Statsend: | 1909 |
| Years1: | 1906, 1909 |
| Games Goals1: | 18 (3) |
Gerald John Ryan (24 May 1887 – 6 February 1917) was an Australian rules footballer who played with Essendon in the Victorian Football League. He died while on active service during World War I, due to head injuries sustained after falling on ice in England.