The surname Halkin may have several possible origins. It may be derived from the diminutive Halkin produced by adding the diminutive suffix "-kin" to the pet name "Hal" for Henry.William Lewis, What's in Your Surname?: The Fascinating Story of British Surnames It may be a Polish-Jewish matronymic surname derived from the first name Halka (Галька), a diminutive/deprecative form of Halina/Galina. It may also be an English transliteration of the Belarusian or Ukrainian form of the Russian surname Galkin.
Notable people with the surname include: Adele Halkin, a plaintiff of the Halkin v. Helms case, United States Hillel Halkin Oleh Halkin Simon Halkin Léon Halkin Léon-Ernest Halkin Shmuel Halkin Barry Halkin, musician from The Notekillers
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