Prince Esper Konstantinovich Beloselsky-Belozersky was a Russian prince and sailor who represented his native country at the 1912 Summer Olympics in Nynäshamn, Sweden. Beloselsky took the bronze in the 10 Metre.
- Occupation
- sailor
- Citizenship
- Russian Empire
- Born
- September 26, 1870
- Died
- January 5, 1921