William Fitzsimmons (March 4, 1819 – July 1894) was a building contractor and political figure in Ontario, Canada.
wˈɪljəm fɪtssˈɪmənz mˈɑːɹtʃ fˈoːɹ, wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd nˈaɪntiːn dʒuːlˈaɪ wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd nˈaɪnti fˈoːɹ wʌzɐ bˈɪldɪŋ kəntɹˈæktɚ ænd pəlˈɪɾɪkəl fˈɪɡjɚɹ ɪn ɑːntˈæɹɪˌoʊ, kˈænədə.