Two fish dentary fragments from Late Pleistocene deposits in the Old Crow area, Yukon Territory are referable to the northern pike (Esox lucius). One tooth fragment from the last interglacial (Sangamon) deposits in the Don River Valley, Toronto, Ontario, is identified as Esox sp. The Yukon dentaries are the first fossils definitely attributable to Esox lucius in North America, and these records are the first for the suborder Esocoidei in Canada.