Terengganu Darul Iman is a state on the East Coast of Peninsular Malaysia. Often spelled Trengganu, it faces the South China Sea, sharing a border with Kelantan to the northwest and Pahang to the southwest. The Arabic honorific Darul Iman attached to the official title of the state means "Abode of Faith", and in a sense reflects the state's Islamic grounding. Kuala Terengganu, at at the mouth of the broad Terengganu River is the state and royal capital as well as the largest city in Terengganu.

Terengganu covers an area of 12,955 sq km (5,002 sq mi) and has a population of 1.2 million people (2011 estimate). Its capital and biggest city is Kuala Terengganu, a town on the estuary of the Terengganu River.