Abashin (Russian: Абашин; masculine) or Abashina (Абашина; feminine) is a Russian last name, a variant of which is Abashkin (Абашкин; masculine) or Abashkina (Абашкина; feminine). These last names derive from "Аба́ша" (Abasha) and "Аба́шка" (Abashka)—the diminutive forms of the first name Avvakum—although other theories explaining the origins of these nicknames also exist (cf. Abashev).
References
Abashin Wikipedia(Text) CC BY-SA