Mieleszczuk or Mileszczuk is a Polish-language surname, most probably of Ukrainian origin.Aneta Mitura, "Typy slowotwórcze nazwisk odapelatywnych na podstawie zapisów w slawatyckich ksiagach metrykalnych z lat 1915-1921", Conservatoria Linguistica, vol. 3, 2009, The correspoinding Ukrainian-language surname is Meleshchuk (Мелещук). Notable people with the surname include: Olga Avigail Mieleszczuk, Poland-born Israeli singer (1939–2021), Polish handball player Yeva Meleshchuk (born 2001), Ukrainian gymnast
See also Melekhov Meleshko Melenchuk
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