Feodosiy or Feodosy () is a Russian-language form of the masculine given name Theodosius. The lay form of the name is Fedosey. Notable people with the name include:
Feodosy Chernyshev Feodosiy Efremenkov, Russian former competitive figure skater Feodosy Krasovsky Feodosiy Petsyna, archbishop in the Ukrainian Orthodox Church Feodosiy of Kiev See also
Dosifey, a name with the reversed order of stems Fedot