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Surname Koulaguine (Кулагин
, Koulaguine
, كولاجين) , in the world, is a common cognomen. The family name Koulaguine is habitual in Russia, where it is quite a common surname, Belarus, where it is quite a rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Кулагин | Ukraine, Kazakhstan, Russia, Belarus, Kyrgyzstan |
| Koulaguine | Spain, United States |