1) Ukrainian surname 
Boyko or Boiko (Cyrillic: Бойки, Bojkowie, Pujďáci) are a distinctive group of Ukrainian highlanders or mountain-dwellers of the Carpathian highlands. Along with Lemkos and Hutsuls they are a national continuum of Carpathian nationalities also known as Gorals. Boykos identify themselves as part of the Ukrainian ethnos which has derived from...