Surname Кутай (Kutay 
, Kutai 
, Kutaj 
) , all over the world, is quite a common cognomen. The family name Кутай is characteristic of Bahrain, where it is quite a rare surname, Slovakia, and Turkey. In absolute terms, this name is the most popular in Turkey, India, and Indonesia. Likewise, Кутай is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kutay | Bahrain, India, Germany, Turkey, United States |
| Kutai | Indonesia, Kenya, India, United States, Hungary |
| Kutaj | Poland, Slovakia, India, United States, Czechia |
| Кутай | Belarus, Ukraine, Kazakhstan, Russia |