Fedosey or Fedosei is a lay form of the Russian masculine given name Feodosiy, Theodosius. The colloquial form is Fedos. Feminine form: Fedosya. It gave rise to the surnames Fedoseyev, ,, Fedosov
Notable people with the name include:
Fedosei Ciumacenco (Fedosey Chumachenko; born 1973), Soviet and Moldovan race walker