Cognomen Nedoseykina (Nedoseykina, Недосейкина 
) , worldwide, is a rare last name. The cognomen Nedoseykina is habitual in Russia, where it is a rare surname, Belarus, where it is a very rare surname, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Недосейкина | Kyrgyzstan, Kazakhstan, Russia, Belarus |