Indragiri Hulu (Upper Indragiri) is a landlocked regency (kabupaten) of Riau, Indonesia. It is located on the island of Sumatra. The original regency was split in two on 4 October 1999, with the western half being created as a separate Kuantan Singingi Regency. The regency now has an area of 8,198.71 km and had a population of 363,442 at the 2010 census, 408,704 at the 2015 census and 444,548 at the 2020 census; the official estimate as at mid 2023 was 472,799 (comprising 51.26% males and 48.74% females). The administrative seat of the regency is located at the town of Rengat.

The regency is divided into fourteen districts (kecamatan), listed below with their areas and their populations at the 2010 census and the 2020 census, together with the official estimates as at mid 2023. The table also includes the locations of the district administrative centres, the number of administrative villages in each district (totaling 178 rural desa and 16 urban kelurahan), and its post code.

Kode Wilayag	Name of District (kecamatan)	Area in km	Pop'n census 2010	Pop'n census 2020	Pop'n estimate mid 2023	Admin centre	No. of villages	Post code
14.02.05	Peranap	1,700.98	28,231	35,161	37,940	Peranap	12	29357
14.02.14	Batang Peranap		8,980	13,252	14,666	Selunak	10	29354
14.02.06	Seberida	960.29	46,155	56,571	59,672	Pangkalan Kasai	11	29371
14.02.07	Batang Cenaku	970.00	28,393	40,736	48,053	Aur Cina	20	29355
14.02.08	Batang Gansal	950.00	26,890	33,272	35,146	Seberida	10	29356
14.02.03	Kelayang	879.84	21,288	24,542	26,258	Simpang Kelayang	17	29352
14.02.13	Rakit Kulim		19,833	23,836	25,062	Petonggan	19	29359
14.02.04	Pasir Penyu	372.50	31,116	36,234	37,260	Air Molek	13	29358
14.02.09	Lirik	233.60	23,418	27,624	28,203	Lirik Area	17	29353
14.02.11	Sungai Lala		12,938	16,608	17,863	Kelawat	12	29363
14.02.12	Lubuk Batu Jaya		18,560	22,981	23,545	Lubuk Batu Tinggal	9	29350
14.02.02	Rengat Barat (West Rengat)	921.00	39,819	48,573	51,516	Permatang Reba	18	29351
14.02.01	Rengat	1,210.50	46,049	50,603	52,285	Rengat	16	29311 - 29319
14.02.10	Kuala Cenaku		11,772	14,555	15,330	Kuala Cenaku	10	29335
	Totals	8,198.71	363,442	444,548	472,799	Rengat	194

Notes: (a) including 2 kelurahan - Baturijal Hilir and Peranap. (b) the area of this district is still included in the figures for the district from which it was cut out. (c) including one kelurahan - the admin centre.
(d) including 5 kelurahan - Air Molek I, Kembang Harum, Sekar Mawar, Tanah Merah and Tanjung Gading.
(e) except the village of Rantau Bakung, which has a post code of 29345.
(f) including 6 kelurahan - Kampung Besar Kota, Kampung Besar Seberang, Kampung Dagang, Pasar Kota, Sekip Hilir and Sekip Hulu.

0°21′00″S 102°31′59″E / 0.35000°S 102.53306°E / -0.35000; 102.53306