Family name イッシキ (イッシキ 
, Isshiki 
) , in the world, is a rare surname. The surname イッシキ is habitual in New Zealand, where it is a rare surname, Japan, where it is a very rare surname, and Brazil. In absolute terms, it most frequently occurs in Japan, Brazil, and the United States. More frequently, イッシキ is the forename as well as the last name.