High Quality Content by WIKIPEDIA articles! The Ibanag language (also Ybanag or Ibanak) is spoken by up to 500,000 speakers (the Ibanag people) in the Philippines, in the northeastern provinces of Isabela and Cagayan, especially in Tuguegarao City, Solana, Cabagan, and Ilagan and with overseas immigrants in countries located in the Middle East, UK and the U.S.A.. Most of the speakers can also speak Ilocano, the lingua franca of Northern Luzon. Ibanag is derived from bannag `river`. It is closely related to Gaddang, Itawis, Agta, Atta, Yogad, Isneg and Malaweg.