Tidore is a city, island, and archipelago in the Maluku Islands of eastern Indonesia, west of the larger island of Halmahera. Part of North Maluku Province, the city includes the island of Tidore together with a large part of Halmahera Island to its east. In the pre-colonial era, the Sultanate of Tidore was a major regional political and economic power, and a fierce rival of nearby Ternate, just to the north.

The Maluku Islands or the Moluccas are an archipelago in the eastern part of Indonesia. Tectonically they are located on the Halmahera Plate within the Molucca Sea Collision Zone. Geographically they are located east of Sulawesi, west of New Guinea, and north and east of Timor. Lying within Wallacea, the Moluccas have been considered a geographical and cultural intersection of Asia and Oceania.