Helen Reynolds Belyea, OC FRSC (Fabrairu 11, 1913 - Mayu 20, 1986), ƙwararriyar ilimin ƙasa ce ta Kanada wacce aka fi sani da bincikenta, a Yammacin Kanada, na Tsarin Devonian, lokacin yanayin ƙasa na zamanin Paleozoic. An haife Belyea a Saint John, New Brunswick, ga dangi da asalin Huguenot na Faransa. Belyea ta sami digirinta na farko da na biyu a fannin Geology daga Jami'ar Dalhousie a Nova Scotia; ta samu digirin digirgir (Ph.D). daga Jami'ar Northwestern a Evanston, Illinois. Kundin karatun digirinta mai suna "The Geology of Musquach Area, New Brunswick." Kafin ta ba da kanta ga ilimin ƙasa, Belyea ta yi aiki a matsayin malamin makarantar sakandare kuma ta yi aiki a matsayin laftanar a Rundunar Sojan Ruwa ta Royal Canadian. A cikin 1945, Binciken Geological na Kanada ya ɗauki Belyea don zama masanin fasaha amma bayan ƴan shekaru, a cikin 1947, an ba ta sabon aiki a matsayin masanin ilimin ƙasa. A wannan shekarar, a cikin watan Fabrairu an hambarar da mai a Leduc, Alberta.