Itskowich

Itskowich is a surname of Ashkenazi Jewish origin. It is generally understood to derive from the given name Itzik, a Yiddish diminutive of Yitzhak (Isaac), with a Slavic patronymic suffix meaning "son of." The combination yields a family name formed in several transliteration systems, which in turn produced a number of closely related spellings.

Common variants include Itskowicz, Itskovich, Itzkowicz, and Itzkovich, among others. Differences in spelling reflect Polish, Ukrainian, Belarusian, Russian, and other linguistic conventions for rendering the same root name into Latin letters, as well as migration and diaspora.

Historically, Itskowich has been associated with Ashkenazi Jewish communities in Central and Eastern Europe, particularly in areas that were part of or influenced by Poland, Lithuania, and the western edge of the former Russian Empire. In the modern era, descendants bearing the name have dispersed to North America and Israel, among other regions, and appear in genealogical and civil records under multiple transliterations.

The name is relatively uncommon, and no single bearer has universal recognition that would define the surname. It remains chiefly of genealogical interest to those researching family histories linked to Itzik/Yitzhak lineages in the Ashkenazi world.