Boyko (surname)
Boyko or Boiko (Cyrillic: Бойко, Polish: Bojko) is a common surname among people with origins in Russia and Western Ukraine, including in Canada and the United States. It is one of the most common surnames in Ukraine. It is also found in South Slavic countries, as a form of the name Бојан/Bojan (Boyan). The surname 'Boiko' is also common amongst Ashkenazi Jews (amongst whom it is spelled as 'Boiko' or 'Boico'), and possibly it is a form of 'Boge', or 'boikil' meaning "quick". In Bulgaria Boiko is a given name.