Cognomen Katsuyo (Katsuyo 
) , across the world, is quite a rare surname. The surname Katsuyo is characteristic of Japan, where it is a rare surname, Spain, where it is an extremely rare surname, and China. Much more frequently, Katsuyo is the forename as well as the last name.
Abe, Yamada, Shimada, Shimizu, Koizumi, Kikuchi, Iwasaki, Okamoto, Yoshida, Urakami, Miyazaki, Robinson, Nagasawa, Nakamura, Nakajima, Watanabe, Yamamoto, Yamazaki, Matsumoto, Matsunaga, Kobayashi, Takahashi, Harada, Tajima, Tanaka, Suzuki, Ito, Ono, Ota, Oda, Mori, Sato, Ando, Arai, Kato, Kono, Hashimoto, Goto, Saito, Sakai, Nishi, Fujii, Inoue, Ishii, Irvin, Morita, Mizuno, Sasaki, Ueno, and Yamaguchi