Stefan Vrtel-Wierczyński (1886 - 1963) was a Polish librarian and bibliographer, historian of Polish and Slavic literature, Professor of Adam Mickiewicz University in Poznań.
stˈɛfən vˌiːˈɑːɹtˈɛlwɪɹkzˈɪnski wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd ˈeɪɾi sˈɪks nˈaɪntiːnhˈʌndɹɪd sˈɪksti θɹˈiː wʌzɐ pˈoʊlɪʃ laɪbɹˈɛɹiən ænd bˌɪblɪˈɑːɡɹəfɚ, hɪstˈoːɹiən ʌv pˈoʊlɪʃ ænd slˈɑːvɪk lˈɪɾɚɹᵻtʃɚ, pɹəfˈɛsɚɹ ʌv ˈædəm mˈɪkjuːˌɪkz jˌuːnɪvˈɜːsᵻɾi ɪn pˈɑːznən.