Last name Sizon (Sizon 
, Сизон 
) , across the world, is a rare family name. The cognomen Sizon is characteristic of Ukraine, where it is a rare surname, Kazakhstan, where it is a very rare surname, and Russia. Not in comparison with a country's population, it is commonest in Ukraine, Russia, and Philippines. Much less frequently, Sizon is the forename as well as the last name.