Cianjur Regency is a regency (kabupaten) of West Java, Indonesia. The area of the regency is 3,503.75 km 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 at mid 2023 was 2,535,002 (comprising 1,298,946 males and 1,236,056 females). The town (district) of Cianjur is its seat.

Northern parts of the regency form a valley (above the 'neck' or narrowest part of the regency), and are far more densely populated than southern regions, with 68% of the regency's population in just 29.5% of its area. As such, a portion of the northern valley (consisting of Cugenang, Pacet, Sukaresmi and Cipanas Districts in the far northwest of the regency) was briefly included in a definition of Greater Jakarta called Jabodetabekjur (jur for Cianjur).

Cianjur Regency is divided into thirty-two districts (kecamatan), listed below with their areas and their populations at the 2010 and 2020 Censuses, together with the official estimates as at mid 2023. The table also includes the locations of the district administrative centres, the number of villages in each district (totaling 354 rural desa and 6 urban kelurahan), and its post code.

(A) Districts south of the "neck"

Kode Wilayah	Name of District (kecamatan)	Area in km	Pop'n 2010 Census	Pop'n 2020 Census	Pop'n mid 2023 Estimate	Admin centre	No. of villages	Post code
32.03.22	Agrabinta	275.81	36,758	40,544	39,861	Mekasari	11	43276
32.03.30	Leles	112.00	31,931	31,595	32,150	Pusakasari	12	43273
32.03.21	Sindangbarang	198.36	51,777	58,508	59,560	Saganten	11	43272
32.03.23	Cidaun	245.97	64,181	69,548	69,114	Kertajadi	14	43275
32.03.24	Naringgul	243.80	44,665	47,470	47,065	Wangunjaya	11	43274
32.03.20	Cibinong	275.81	57,842	64,164	64,566	Sukajadi	14	43271
32.03.26	Cikadu	147.93	34,654	37,028	37,617	Cikadu	10	43286
32.03.19	Tanggeung	51.83	44,288	50,165	51,727	Tanggeung	12	43267
32.03.32	Pasirkuda	76.59	34,513	38,149	38,898	Kalibaru	9	43266 & 43267
32.03.17	Kadupandak	100.00	48,768	52,941	53,960	Kadupandak	14	43268
32.03.29	Cijati	58.15	32,737	34,452	35,929	Cijati	10	43284
32.03.16	Takokak	151.90	50,883	52,072	54,573	Pasawahan	9	43265
32.03.14	Sukanagara	165.45	48,727	55,730	57,408	Sukanagara	10	43264
32.03.18	Pagelaran	158.39	68,121	75,668	78,343	Pagelaran	14	43266
32.03.15	Campaka	142.94	63,847	69,727	71,311	Cidadep	11	43263
32.03.25	Campakamulya	64.52	23,756	24,020	23,690	Campakamulya	5	43269
	Totals (South)	2,469.45	737,448	801,781	812,813		177

(B) Districts north of the "neck"

Kode Wilayah	Name of District (kecamatan)	Area in km	Pop'n 2010 Census	Pop'n 2020 Census	Pop'n mid 2023 Estimate	Admin centre	No. of villages	Post code
32.03.03	Cibeber	137.49	115,907	133,786	138,117	Cihaur	18	43262
32.03.02	Warungkondang	38.24	64,880	77,749	82,411	Jambudipa	11	43260
32.03.27	Gekbrong	46.48	51,026	60,919	62,859	Gekbrong	8	43261
32.03.04	Cilaku	50.96	96,823	117,658	121,056	Sukasari	10	43285
32.03.09	Sukaluyu	45.78	70,082	89,538	93,999	Sukaluyu	10	43287
32.03.06	Bojongpicung	71.75	70,959	83,446	86,388	Bojongpicung	11	43283
32.03.31	Haurwangi	43.35	53,641	63,813	65,179	Kertasari	8	43280
32.03.05	Ciranjang	32.76	74,439	88,754	89,727	Cibiuk	9	43282
32.03.08	Mande	83.20	69,148	81,567	83,111	Mulyasari	12	43292
32.03.07	Karangtengah	46.33	134,318	164,367	167,556	Hegarmanah	16	43281
32.03.01	Cianjur (town)	26.24	158,125	173,265	177,314	Pamoyanan	11	43215 & 43216
32.03.11	Cugenang	67.38	99,539	117,211	121,370	Mangunkerta	16	43252
32.03.10	Pacet	43.21	96,664	110,970	113,103	Cipendawa	7	43253
32.03.28	Cipanas	40.20	103,911	113,592	115,127	Cipanas	7	43253
32.03.13	Sukaresmi	95.93	80,009	91,342	93,772	Cikanyere	11	43254
32.03.12	Cikalongkulon	165.00	94,262	107,802	111,100	Sukagalih	18	43291
	Totals (North)	1,034.30	1,433,733	1,675,779	1,722,189		183

Notes: (a) these 4 districts for a while formed part of the defined metropolitan district of Jabodetabekjur. (b) except the village of Ciputri, which has a post code of 43281.
Of the 360 villages, 354 are rural desa, while 6 are urban kelurahan (Bojongherang, Muka, Pamoyanan, Sawah Gede, Sayang and Solokpandan), which are all part of Cianjur (town) District (kecamatan).

A terracing structure, although local people mention it as a pyramid, lies on Mount Padang, 31 kilometer from Cianjur through Warung Kondang. It is the biggest Megalithic Site in Southeast Asia.

Mount Kendeng is located at 6°46′05″S 106°31′34″E / 6.768°S 106.526°E / -6.768; 106.526 on the border between Bandung Regency and Cianjur Regency. It is one of three pronounced peaks of the caldera, along with Mount Batu at 1,816 m (5,958 ft) and Mount Malang at 1,796 m (5,892 ft). Mount Kendeng reaches 1,732 m (5,682 ft).