Surname Slashchilina (Slashchilina 
, Слащилина 
, Слашчилина ) , in the entire world, is a rare cognomen. The cognomen Slashchilina is habitual in Russia, where it is a rare surname, Kyrgyzstan, and Belarus, where it is a very rare surname. In absolute terms, it is commonest in Russia, Kazakhstan, and Belarus.