Throughout the world, Yasuichi (Yasuichi 
) is an extremely rare boy's first name.
Abe, Fujita, Yamada, Shimizu, Hayashi, Miyazaki, Murakami, Sakamoto, Sugiyama, Nakamura, Nakagawa, Furukawa, Fujiwara, Ishikawa, Watanabe, Yamamoto, Yamazaki, Matsumoto, Kawashima, Kobayashi, Takahashi, Hashimoto, Takano, Tanaka, Kimura, Kaneko, Ito, Ono, Ota, Oya, Mori, Sano, Sato, Kato, Kudo, Yano, Yamashita, Ueda, Saito, Sakai, Kondo, Ikeda, Okada, Masuda, Morita, Murata, Sasaki, Suzuki, Maeda, and Yamaguchi