>
Last name Itsuki (イツキ , Itsuki , 五木 ) , in the world, is a common cognomen. The cognomen Itsuki is characteristic of Japan, where it is quite a rare surname, Indonesia, where it is a very rare surname, and Malaysia. In absolute terms, it is commonest in Japan, Indonesia, and China. Much less frequently, Itsuki is the forename as well as the last name.