List of common Japanese surnames

Officially, among Japanese names there are 291,129 different Japanese surnames (姓, sei),[1] as determined by their kanji, although many of these are pronounced and romanized similarly. Conversely, some surnames written the same in kanji may also be pronounced differently.[2] The top 10 surnames cover approximately 10% of the population, while the top 100 surnames cover slightly more than 33%.[3]

This ranking is a result of an August 2008 study by Meiji Yasuda Life Insurance Company,[3] which included approximately 6,118,000 customers of Meiji Yasuda's insurance and annuities.

Rank	Name	Romanization	Estimated Number (2008)	Occupation Rate (%)
1	佐藤	Satō	1,990,000	1.57
2	鈴木	Suzuki	1,900,000	1.50
3	高橋	Takahashi	1,470,000	1.16
4	田中	Tanaka	1,340,000	1.06
5	渡辺	Watanabe	1,200,000	0.95
6	伊藤	Itō	1,150,000	0.91
7	中村	Nakamura	1,080,000	0.85
8	小林	Kobayashi	1,060,000	0.84
9	山本	Yamamoto	1,020,000	0.81
10	加藤	Katō	920,000	0.73
11	吉田	Yoshida	850,000	—
12	山田	Yamada	820,000	—
13	佐々木	Sasaki	710,000	—
14	山口	Yamaguchi	640,000	—
15	松本	Matsumoto	630,000	—
16	井上	Inoue	600,000	—
17	木村	Kimura	580,000	—
18	清水	Shimizu	560,000	—
19	林	Hayashi	550,000	—
20	斉藤	Saitō	530,000	—
21	斎藤	Saitō	520,000	—
22	山崎	Yamazaki Yamasaki	490,000	—
23	中島	Nakajima Nakashima	480,000	—
24	森	Mori	470,000	—
25	阿部	Abe	470,000	—
26	池田	Ikeda	450,000	—
27	橋本	Hashimoto	450,000	—
28	石川	Ishikawa	440,000	—
29	山下	Yamashita	410,000	—
30	小川	Ogawa	410,000	—
31	石井	Ishii	400,000	—
32	長谷川	Hasegawa	390,000	—
33	後藤	Gotō	390,000	—
34	岡田	Okada	380,000	—
35	近藤	Kondō	370,000	—
36	前田	Maeda	370,000	—
37	藤田	Fujita	370,000	—
38	遠藤	Endō	360,000	—
39	青木	Aoki	350,000	—
40	坂本	Sakamoto	350,000	—
41	村上	Murakami	340,000	—
42	太田	Ōta	320,000	—
43	金子	Kaneko	310,000	—
44	藤井	Fujii	310,000	—
45	福田	Fukuda	300,000	—
46	西村	Nishimura	300,000	—
47	三浦	Miura	300,000	—
48	竹内	Takeuchi	290,000	—
49	中川	Nakagawa	290,000	—
50	岡本	Okamoto	290,000	—
51	松田	Matsuda	290,000	—
52	原田	Harada	290,000	—
53	中野	Nakano	290,000	—
54	小野	Ono	280,000	—
55	田村	Tamura	280,000	—
56	藤原	Fujiwara Fujihara	270,000	—
57	中山	Nakayama	270,000	—
58	石田	Ishida	270,000	—
59	小島	Kojima	260,000	—
60	和田	Wada	260,000	—
61	森田	Morita	250,000	—
62	内田	Uchida	250,000	—
63	柴田	Shibata	250,000	—
64	酒井	Sakai	240,000	—
65	原	Hara	240,000	—
66	高木	Takagi Takaki	240,000	—
67	横山	Yokoyama	240,000	—
68	安藤	Andō	240,000	—
69	宮崎	Miyazaki Miyasaki	240,000	—
70	上田	Ueda Ueta	240,000	—
71	島田	Shimada	230,000	—
72	工藤	Kudō	230,000	—
73	大野	Ōno	220,000	—
74	宮本	Miyamoto	220,000	—
75	杉山	Sugiyama	220,000	—
76	今井	Imai	220,000	—
77	丸山	Maruyama	210,000	—
78	増田	Masuda	210,000	—
79	高田	Takada Takata	210,000	—
80	村田	Murata	210,000	—
81	平野	Hirano	210,000	—
82	大塚	Ōtsuka	210,000	—
83	菅原	Sugawara Sugahara	210,000	—
84	武田	Takeda Taketa	200,000	—
85	新井	Arai	200,000	—
86	小山	Koyama Oyama	200,000	—
87	野口	Noguchi	200,000	—
88	桜井	Sakurai	200,000	—
89	千葉	Chiba	200,000	—
90	岩崎	Iwasaki	200,000	—
91	佐野	Sano	200,000	—
92	谷口	Taniguchi	200,000	—
93	上野	Ueno	200,000	—
94	松井	Matsui	190,000	—
95	河野	Kōno Kawano	190,000	—
96	市川	Ichikawa	190,000	—
97	渡部	Watanabe Watabe	190,000	—
98	野村	Nomura	180,000	—
99	菊地	Kikuchi	180,000	—
100	木下	Kinoshita	180,000	—

References

日本苗字大辞典 [Japanese Surname Dictionary]. 芳文館 [Houbunkan]. 1996. ISBN 4990058402.
Wolfgang Hadamitzky, ed. (2016). Japanese, Chinese, and Korean Surnames and How to Read Them. Walter de Gruyter. ISBN 9783110969887.
"明治安田生命全国同姓調査 [Meiji Yasuda Life Insurance Company - National same family name investigation]" (PDF) (Press release). Meiji Yasuda Life Insurance Company. 2008-09-24. Retrieved 2012-05-30.

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[japan1-1] 日本苗字大辞典 [Japanese Surname Dictionary]. 芳文館 [Houbunkan]. 1996. ISBN 4990058402.

[2] Wolfgang Hadamitzky, ed. (2016). Japanese, Chinese, and Korean Surnames and How to Read Them. Walter de Gruyter. ISBN 9783110969887.

[japan2-3] "明治安田生命全国同姓調査 [Meiji Yasuda Life Insurance Company - National same family name investigation]" (PDF) (Press release). Meiji Yasuda Life Insurance Company. 2008-09-24. Retrieved 2012-05-30.