Cognomen Mitsugu (Mitsugu 
) , around the world, is a rare last name. The family name Mitsugu is characteristic of Taiwan, where it is a rare surname, China, where it is an extremely rare surname, and Chile. In absolute terms, this name is the most popular in China, Taiwan, and the United States. Much more prevalently, Mitsugu is the forename as well as the last name.
Ito, Yasuda, Yamada, Yoneda, Uchino, Maekawa, Shimizu, Shimmyo, Nagaoka, Yoshida, Matsukawa, Kawakami, Takemura, Takezaki, Hamanaka, Hasegawa, Watanabe, Yamamoto, Yamauchi, Matsumoto, Shinohara, Takahashi, Onishi, Ishida, Hirata, Tomita, Ono, Omi, Mori, Sato, Kato, Kuno, Yano, Saito, Azuma, Chiba, Yamaguchi, Nitta, Otani, Ogino, Manabe, Morita, Sasaki, Suzuki, Bosset, Kajioka, Tanaka, Tanabe, Fujii, and Matsushita