Cianjur Regency is a regency of West Java, Indonesia. The area of the regency is 3,614.38 km2 and its population at the 2010 Census was 2,171,281; the 2020 Census produced a total of 2,477,560 and the official estimate published by the regency government as of 2025 was 2,610,316. The town (district) of Cianjur is its seat.