Oleynik
Oleynik, also Oleinik is a Russian-language occupational surname: the word wikt:олей means vegetable oil, and 'oleynik' is a person who manufactures or sells oil. Notable people with the surname include:
- Aleksandr Oleinik, Russian footballer
- Aleksei Oleinik, Russian mixed martial artist and combat sambo fighter
- Alexander Oleinik, Ukrainian kickboxer
- Anatoly Oleynik, Russian professor of chemistry
- Larisa Oleynik, American actress
- Olga Arsenievna Oleinik, Soviet mathematician
- Frank Oleynick, American retired basketball player