Family name Siomina (Siomina 
, Сёмина 
) , all over the world, is a rare surname. The last name Siomina is characteristic of Kazakhstan, where it is quite a rare surname, Belarus, and Lithuania, where it is a rare surname. In absolute terms, it is commonest in Russia, Kazakhstan, and Belarus. Very seldom, Siomina is the forename as well as the last name.