Kuala Nerus is a district in Terengganu, Malaysia. It is the youngest district in the state, having been declared a separate district in 2014. Formerly it was part of Kuala Terengganu district but the district is still governed by Kuala Terengganu City Council (MBKT) which is one of few city councils in Malaysia to govern two separate districts. Its capital is Kuala Nerus town, other major towns and villages include Gong Badak, Seberang Takir, Batu Rakit and Batu Enam, all which are located within city limits of Kuala Terengganu. Kuala Nerus' population is 226,177 people as of 2015 which makes it the most populous district in Terengganu. The district has a total land area of 397.52 km2.

Terengganu, formerly spelled Trengganu or Tringganu, is a sultanate and federal state of Malaysia. The state is also known by its Arabic honorific, Dāru l-Īmān. The coastal city of Kuala Terengganu, which stands at the mouth of the broad Terengganu River, is both the state and royal capital as well as the most populous city in Terengganu. Other major cities and towns includes Jerteh, Kuala Dungun, Chukai, Kuala Berang, Marang, and Permaisuri. At 13,035 square kilometres in size and a population of over 1.2 million people in 2023, Terengganu is Malaysia's 7th largest state by area and 10th largest in population. Terengganu, along with Kelantan, Perlis and the Federal Territory of Putrajaya is one of the most homogeneous states/territories in the country of which 95% of the population are ethnic Malay-Muslims with its own distinct language/dialect, culture, history and tradition.