Cagayan is a province of the Philippines in the Cagayan Valley region in Luzon. Its capital is Tuguegarao City and is located at the northeastern corner of the island of Luzon. Cagayan also includes the Babuyan Islands to the north.
Cagayan Provincial Capitol in Tuguegarao City
Present day chroniclers say that the name was derived from the word “tagay,” a kind of plant that grows abundantly in the northern part of the province. Thus, “Catagayan” which means a place where the tagay grows abundantly was shortened to “Cagayan,” the present name of the province.