Kota Bharu, colloquially referred to as KB, is a town in Malaysia that serves as the state capital and royal seat of Kelantan. It is situated in the northeastern part of Peninsular Malaysia and lies near the mouth of the Kelantan River.

Kelantan is a state in Malaysia. The capital, Kota Bharu, includes the royal seat of Kubang Kerian. The honorific name of the state is Darul Naim. Kelantan is the only state outside of East Malaysia that does not use the term district in its second-level administrative division. Instead, the districts is named as colonies or collectivities and one autonomous subdistrict.