Cognomen Keichi (Keichi 
) , all around the world, is a very rare surname. The cognomen Keichi is habitual in Eastern Asia, particularly China, where it is an extremely rare surname. Much more frequently, Keichi is the forename as well as the last name.
Abe, Tomei, Nagai, Inoue, Osada, Murata, Suzuki, Aoyagi, Kimura, Tanaka, Nakano, Yamato, Noguchi, Hayashi, Okamoto, Minamoto, Murayama, Nakamura, Nakagawa, Watanabe, Yamamoto, Kobayashi, Panis, Takahashi, Kondo, Araki, Tan, Ide, Ito, Sato, Seki, Ando, Arai, Kato, Khan, Kina, Hori, Inoe, Onoe, Onda, Omae, Maeda, Miura, Saito, Sakai, Sasai, Shono, Ajjan, and Takeshita