Cognomen Soyu (Soyu 
, Сою 
) , throughout the world, is quite a rare family name. The last name Soyu is characteristic of Japan, where it is quite a rare surname, Turkey, where it is a very rare surname, and Indonesia. More prevalently, Soyu is the forename as well as the last name.
Abe, Tanaka, Nomura, Hirota, Yamada, Miyoshi, Kurokawa, Yoshida, Murakami, Kawaguchi, Nakamura, Hasegawa, Ishimaru, Watanabe, Yamamoto, Yokoyama, Tsukamoto, Nakanishi, Suzuki, Yamashita, Shinta, Masuda, Kim, Lam, Ito, Ota, Oda, Miki, Sato, Chan, Kang, Park, Imai, Weng, Mukai, Gavit, Gouda, Leung, Oishi, Sasaki, and Yamaguchi