| Les McKay | |
| Nationality: | Australian |
| Sport: | Water polo |
| Birth Date: | 27 May 1917 |
| Birth Place: | Waverley, New South Wales, Australia |
Les McKay (27 May 1917 - 22 March 1981) was an Australian water polo player. He competed in the men's tournament at the 1948 Summer Olympics.[1]
He was given the honour to carry the national flag of Australia at the opening ceremony of the 1948 Summer Olympics in London, becoming the fifth water polo player to be a flag bearer at the opening and closing ceremonies of the Olympics.[2]