Kluang is a district in Johor, Malaysia. Its district capital is Kluang Town. Kluang district is one of the three landlocked districts in Johor, the other being Segamat and Kulai.

Kluang District is 2,851.64 km² in size.

Kluang District is bordered by Segamat in the north, Batu Pahat in the west and Mersing in the east. The southern border of Kluang district meets Pontian, Kulai and Kota Tinggi. As the central district, it borders the most districts in Johor.

Kluang District is divided into eight mukims, which are:

Kluang is divided into two local councils namely Simpang Renggam District Council (Malay: Majlis Daerah Simpang Renggam) based at Simpang Renggam Town and Kluang Municipal Council (Malay: Majlis Perbandaran Kluang) based at Kluang Town which is also the district capital.

List of Kluang district representatives in the Federal Parliament (Dewan Rakyat)

List of Kluang district representatives in the State Legislative Assembly (Dewan Undangan Negeri)

As of 2020, total population of Kluang District is 323,762 people. In 2000, the population growth was 1.48%.