# Kostiuk (surname)

Source: https://namelineage.com/surname/kostiuk/  
Publisher: Name Lineage. Counts from the US Census Bureau; origin and etymology from Wiktionary; bearers from Wikidata. Data updated 2026-11-11.

A surname from Ukrainian.

| Field | Value |
|---|---|
| Origin | Ukrainian |
| Type | patronymic, formed from a father’s (or ancestor’s) given name |
| People in the US (2010 Census) | 410 |
| US rank (2010) | 50,851 of 162,253 |
| How often | about 1 in every 753,038 people |
| Change since 2000 | +21% (339 in 2000) |
| Pronunciation | not recorded |
| Variant spellings | Kostyuk |

## Etymology

Ukrainian National system romanization of Ukrainian Костюк (Kostjuk), patronymic form of Кост (Kost, “diminutive of "Konstantyn" (Constantine)”).

## Who carries it

Share of people named Kostiuk in the 2010 US Census by the Census's own race and ethnicity groups. The Census suppresses a share when the count behind it is small.

| Group | Share |
|---|---|
| White (not Hispanic) | 93% |
| Black (not Hispanic) | 0.0% |
| Hispanic or Latino (any race) | 3.7% |
| Two or more races | 2.7% |

## Similar surnames

Kostka, Kostas.

## How to read these numbers

A Census count is people alive and counted in 2010, not births, and names occurring fewer than 100 times are not published at all. Ethnicity shares are the Census's own categories.