| Headercolor: | lightblue |
| Kostyantyn Milyayev | |
| Fullname: | Kostyantyn Serhiyovych Milyayev |
| Nationality: | Ukrainian |
| Residence: | Mykolaiv, Ukraine |
| Birth Date: | 23 October 1987 |
| Birth Place: | Novokuznetsk, Russian SFSR, Soviet Union |
| Weight: | 650NaN0 |
| Sport: | Diving |
| Event: | Platform |
| Club: | Ukraïna Mykolaïv (UKR) |
| Show-Medals: | yes |
| Medaltemplates: | [1] |
Kostyantyn Serhiyovych Milyayev (Ukrainian: Костянтин Сергійович Міляєв; born 23 October 1987 in Novokuznetsk, Russian SFSR) is a Ukrainian platform diver.[2] Milyayev represented Ukraine at the 2008 Summer Olympics in Beijing, where he competed for the men's platform event. He placed twentieth out of thirty divers in the preliminary round, with a total score of 410.20 points after six successive attempts.[3]