| Strokes: | Freestyle, backstroke |
| Club: | Bondi Ladies ASC |
| Birth Date: | 5 June 1915 |
| Birth Place: | Melbourne, Australia |
| Death Date: | 25 June 1974 (aged 59) |
| Death Place: | Sydney, Australia |
| Height: | 182 cm |
| Show-Medals: | yes |
Ethel Ellen "Kitty" Mackay (later Hodgson, 5 June 1915 – 25 June 1974) was an Australian swimmer. She competed in the 100 m freestyle and 100 m backstroke events at the 1936 Summer Olympics, but failed to reach the finals.