Cognomen Kostovski (Kostovski 
, Костовски ) , in all the world, is quite a rare family name. The surname Kostovski is characteristic of North Macedonia, where it is quite a common surname, Serbia, where it is quite a rare surname, and Bulgaria. Much less frequently, Kostovski is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kostovski | Australia, North Macedonia, Bulgaria, United States, Serbia |
| Костовски | Bulgaria |
| petar kostovski MK (b. 1934) |
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| ognen kostovski researcher |
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| emil kostovski researcher |
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| glisha kostovski Macedonian wood carver |
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| jovan kostovski Macedonian footballer, MK (b. 1987) |
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