Around the globe, 田口 (田口 
) is a very rare male forename. The first name 田口 is characteristic of Eastern Asia, particularly China, where it is an extremely rare masculine name. Likewise, 田口 is the last name as well as the forename.
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| 田口 | China |
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田口米作 Japanese printmaker, JP (b. 1864) |
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田口助太郎 Japanese politician and film producer, JP (b. 1907) |
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| 田口 謙吉 Japanese politician, JP (b. 1858) |
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| 田口 文太 military person in Japan, JP (b. 1878) |
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| 田口 利八 Japanese businessman, JP (b. 1907) |
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| 田口善国 Japanese artist, JP (b. 1923) |
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| 田口 勝彦 Japanese director and screenwriter, JP (b. 1931) |
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| 田口 周 Japanese baseball player (1932-2006), JP (b. 1932) |
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田口成浩 Japanese basketball player, JP (b. 1990) |
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| 田口貞善 Japanese sports scientist, JP (b. 1941) |
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| 田口 弘 JP (b. 1937) |
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| 田口 俊明 JP (b. 1941) |
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| 田口 三昭 Japanese businessman, JP (b. 1958) |
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| 田口ランディ Japanese novelist and essayist, JP (b. 1959) |
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| 田口隆 Japanese handball player, JP (b. 1961) |
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