| Sidney Ellis | |
| Birth Name: | Sidney Ellis |
| Birth Date: | 13 March 1859 |
| Birth Place: | Lewisham,[1] London, England |
| Death Place: | (registered in) Croydon |
| Ru Position: | Forward |
| Repcaps1: | 1 |
| Reppoints1: | Goals:0; Tries:1; Conv:0; Pens:0; Drop:0 |
| Repyears1: | 1880–1880 |
| Clubs1: | Queen's House Football Club |
| School: | Dulwich College |
Sidney Ellis (1859-1937) was a rugby union international who represented England in 1880.
Sidney Ellis was born on 13 March 1859 in Lewisham. He attended Dulwich College.
Ellis made his international debut on 2 February 1880 at Lansdowne Road in the Ireland vs England match which was won by England. This was the only test he played in.