Here, in descending order, are the top 100 most common Japanese family names these days — followed by a list of the five most commonly occurring ones in each of the country’s 47 prefectures.
- Sato
- Suzuki
- Takahashi
- Tanaka
- Watanabe
- Ito
- Yamamoto
- Nakamura
- Kobayashi
- Kato
- Yoshida
- Yamada
- Sasaki
- Yamaguchi
- Saito
- Matsumoto
- Inoue
- Kimura
- Hayashi
- Shimizu
- Yamazaki
- Mori
- Abe
- Ikeda
- Hashimoto
- Yamashita
- Ishikawa
- Nakajima
- Maeda
- Fujita
- Ogawa
- Goto
- Okada
- Hasegawa
- Murakami
- Kondo
- Ishii
- Saito (different kanji)
- Sakamoto
- Endo
- Aoki
- Fujii
- Nishimura
- Fukuda
- Ota
- Miura
- Fujiwara
- Okamoto
- Matsuda
- Nakagawa
- Nakano
- Harada
- Ono
- Tamura
- Takeuchi
- Kaneko
- Wada
- Nakayama
- Ishida
- Ueda
- Morita
- Hara
- Shibata
- Sakai
- Kudo
- Yokoyama
- Miyazaki
- Miyamoto
- Uchida
- Takagi
- Ando
- Taniguchi
- Ohno
- Maruyama
- Imai
- Takada
- Fujimoto
- Takeda
- Murata
- Ueno
- Sugiyama
- Masuda
- Sugawara
- Hirano
- Kojima
- Otsuka
- Chiba
- Kubo
- Matsui
- Iwasaki
- Sakurai
- Kinoshita
- Noguchi
- Matsuo
- Nomura
- Kikuchi
- Sano
- Onishi
- Sugimoto
- Arai