| John McEldowney | |
| Birth Name: | John Thompson McEldowney |
| Birth Date: | 26 October 1947 |
| Birth Place: | New Plymouth, New Zealand |
| Death Place: | New Plymouth, New Zealand |
| Ru Position: | Prop |
| Height: | 1.830NaN0 |
| Weight: | 104kg (229lb) |
| Repyears1: | 1976–77 |
| Repcaps1: | 2 |
| Reppoints1: | 0 |
| Ru Province1: | Taranaki |
| Ru Provinceyears1: | 1967–80 |
| Ru Provinceapps1: | 125 |
| School: | New Plymouth Boys' High School |
John Thompson McEldowney (26 October 1947 – 17 June 2012) was a New Zealand rugby union player. A prop, McEldowney represented Taranaki at a provincial level, and was a member of the New Zealand national side, the All Blacks, in 1976 and 1977. He played 10 matches for the All Blacks including two internationals.[1]