Thursday Island, colloquially known as TI, or in the native language, Waiben, is an island of the Torres Strait Islands archipelago located approximately north of Cape York Peninsula in the Torres Strait, Queensland, Australia. Thursday Island is the administrative and commercial centre of the Torres Strait Island Region. and has an area of about . The highest point on Thursday Island, standing at above sea level, is Milman Hill, a World War II defence facility. At the , Thursday Island had a population of 2,610.