Family name Siula (Siula 
) , worldwide, is a rare surname. The last name Siula is habitual in Malawi, where it is quite a rare surname, Venezuela, where it is a very rare surname, and South Africa, where it is an extremely rare surname. In absolute terms, it is commonest in Malawi, Venezuela, and India. Very seldom, Siula is the forename as well as the last name.