Geoffrey Francis Hattersley-Smith D.Phil, FRSC, FRGS, FAINA  (22 April 1923 – 21 July 2012) was an English-born  Canadian geologist and glaciologist, recognized as a pioneering researcher of Northern Canada.
dʒˈɛfɹi fɹˈænsɪs hˈæɾɚslismˈɪθ dˈiː.fˈɪl, ˌɛfˌɑːɹɹˌɛssˈiː, ˌɛfˌɑːɹdʒˌiːˈɛs, fˈeɪnə twˈɛnti tˈuː ˈeɪpɹəl nˈaɪntiːnhˈʌndɹɪd twˈɛnti θɹˈiː twˈɛnti wˈʌn dʒuːlˈaɪ tˈuː θˈaʊzənd twˈɛlv wʌz ɐn ˈɪŋɡlɪʃbˈɔːɹn kɐnˈeɪdiən dʒɪˈɑːlədʒˌɪst ænd ɡlˌeɪsɪˈɑːlədʒˌɪst, ɹˈɛkəɡnˌaɪzd æz ɐ paɪənˈɪɹɪŋ ɹᵻsˈɜːtʃɚɹ ʌv nˈɔːɹðɚn kˈænədə.