Cognomen Reisui (Reisui 
) , worldwide, is a common last name. The last name Reisui is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname. Very seldom, Reisui is the forename as well as the last name.
Ei, Shigeru, Shoichi, Katsumi, Kiyoshi, Takeshi, Tadashi, Satoshi, Toshiro, Hiroshi, Nobuhiro, Hideyuki, Yoshiaki, Yasuyukijo, Yoshihiko, Tetsuro, Yuichi, Toshio, Shigeo, Shin, Gaku, Toru, Isao, Yuji, Masao, Sadao, Sumio, Kazuo, Takeo, Tadao, Haruo, Fujio, Isamu, Yukio, Yoshiharu, and Yoshiyuki