All over the world, Ritsuko (Ritsuko 
, リツコ , 律子 ) is quite a rare female first name. The forename Ritsuko is characteristic of Japan, where it is a rare girly name, the United States, where it is a very rare girly name, and China, where it is an extremely rare boy's name. Also, Ritsuko is the last name as well as the forename.
| VARIANT | COUNTRY |
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| Ritsuko | Japan, China, Australia, United States, Brazil |
| リツコ | Japan |
| 律子 | China |
| Рицуко | Russia |
Ritsuko is also a name for the fictitious and mythical characters: Ritsuko Akagi , the fictional character from Neon Genesis Evangelion and Ritsuko Akizuki , character in The Idolmaster.
| ritsuko hasegawa (b. 1899) |
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| ritsuko akiyama (b. 1940) |
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| ritsuko ogura jewelry designer, JP (b. 1951) |
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| ritsuko ohkusa actress, JP (b. 1956) |
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| ritsuko notani Japanese character designer, JP (b. 1965) |
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| ritsuko matsuo Japanese candidate (b. 1972) |
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| ritsuko takada researcher, ORCID id # 0000-0002-1615-056X |
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| ritsuko inoue researcher ORCID ID = 0000-0001-8592-9553 |
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| ritsuko ohtani-kaneko researcher |
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| ritsuko harigai researcher |
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| ritsuko kakuma researcher |
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| ritsuko obata researcher |
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| ritsuko nishide researcher (ORCID 0000-0002-0347-5031) |
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| ritsuko komaki researcher |
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| ritsuko nakamura researcher |
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Abe, Uehara, Karunia, Hayashi, Higuchi, Iwasaki, Yoshida, Miyamoto, Murakami, Sakamoto, Nakamura, Nakajima, Hasegawa, Fujiwara, Watanabe, Yamamoto, Yamazaki, Uchiyama, Matsumoto, Matsunaga, Saruwatari, Kobayashi, Yamada, Fukuda, Tanaka, Kimura, Doi, Ito, Ono, Ota, Mori, Sato, Kato, Kubo, Goto, Wada, Takahashi, Yagi, Maeda, Saito, Chiba, Fujii, Inoue, Ishii, Ikeda, Okada, Sasaki, Suzuki, Ueda, and Yamaguchi