Surname Sinina (Sinina 
, Синина 
) , in the world, is a rare last name. The cognomen Sinina is habitual in Afghanistan, where it is a rare surname, the Democratic Republic of the Congo, and Kazakhstan. Measured by absolute frequency, the name is most common in the Democratic Republic of the Congo, Philippines, and Russia. Very seldom, Sinina is the forename as well as the last name.