Family name origins & meanings
- Polish (Siemieński) : habitational name for someone from any of various places called Siemień, in Bielsk, Podlaski, and Łoṃza voivodeships, or Siemienie in Nowy Sącz and Płock voivodeships. The place names are from a short form of any of various Old Polish personal names such as Siemisław, Siemomyśl, and Siemirad (see Semerad), having Old Slavic sěmi ‘person’ or sěmja ‘family’ as the first element.