Cognomen Boilo (Boilo 
, Бойло 
) , worldwide, is a rare last name. The surname Boilo is habitual in Belarus, where it is a rare surname, Kyrgyzstan, and Ukraine, where it is a very rare surname. In absolute terms, it is commonest in Eastern Europe, particularly Ukraine, Russia, and Belarus. Very seldom, Boilo is the forename as well as the last name.