Surname Davydkina (Давыдкина 
, Davydkina 
) , throughout the world, is quite a rare last name. The cognomen Davydkina is habitual in Russia, where it is quite a rare surname, Estonia, where it is a rare surname, and Belarus. Not in comparison with a country's population, this name is the most popular in Russia, Kazakhstan, and Belarus.
| VARIANT | COUNTRY |
|---|---|
| Давыдкина | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Davydkina | Russia, Czechia, Estonia, Belarus, United States |
| t.a. davydkina botanist (b. 1938) |
|