Last name Kotoki (Kotoki 
) , throughout the world, is a rare family name. The last name Kotoki is habitual in India, where it is a very rare surname, Iran, and South Africa. Also, Kotoki is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kotoki | Iran, India, South Africa, Nigeria, Japan |
| liladhar kotoki Indian politician, IN (b. 1917) |
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| karin kotoki Japanese AV idol (b. 1996) |
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