Bay of Ob wani katon bakin teku ne dake cikin Tekun Arctic, kusa da gabar Siberiya, a kasar Rasha. Kalmar "Ob" tana nufin kogin Ob, wanda shine daya daga cikin manyan koguna a duniya kuma ya shiga cikin teku. An san bakin tekun saboda yanayi mai tsauri, tare da dogon lokacin sanyi mai tsanani, kuma kasancewar gida ne ga namun daji iri-iri, kamar su whales, like, da polar bears. Sunan "Bay of Ob" ya fito ne daga kalmar Rashanci "Zaliv Obskiy," wanda ke fassara zuwa "Ob Gulf" ko "Ob Bay."