Kostiuk

Kostiuk is a surname of Ukrainian origin, derived from the given name Kostyuk, which is a diminutive form of Kostyantyn, meaning "constant" or "steadfast." The surname Kostiuk is most commonly found in Ukraine, where it has been passed down through generations. It is also present in other countries with significant Ukrainian populations, such as Canada, the United States, and Australia. The surname Kostiuk is relatively rare, with fewer than 1,000 bearers worldwide. Notable individuals with the surname Kostiuk include Ukrainian athletes, artists, and academics, who have made contributions in their respective fields. The surname Kostiuk is pronounced as "KOS-tee-ook" in Ukrainian, with the stress on the first syllable.