Last name Сиоя (Shioya 
, Sioja 
, Sachiyuki 
) , around the globe, is a rare family name. The family name Сиоя is characteristic of Lithuania, where it is a rare surname, Japan, where it is a very rare surname, and Poland. Not in comparison with a country's population, this name is the most popular in Japan, Brazil, and the United States. Also, Сиоя is the forename as well as the last name.