Family name Гаыкова (Гаыкова 
, Gaykova 
) , all around the world, is a rare cognomen. The surname Гаыкова is habitual in Bulgaria, where it is quite a rare surname, Estonia, where it is a rare surname, and Russia, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Гаыкова | Russia |
| Gaykova | Russia, Estonia, Bulgaria |