Bengkayang Regency (Chinese: 孟嘉影) is a regency ("kabupaten") in West Kalimantan Province of Indonesia, (on the island of Borneo). The area was originally a part of Sambas Regency, but following the expansion of the population in that area, Sambas Regency was divided into a smaller Sambas Regency and a new Bengkayang Regency on 20 April 1999, and then Singkawang City was subsequently cut out of Bengkayang Regency on 21 June 2001. The regency now covers an area of 5,382.74 km, and had a population of 215,277 at the 2010 Census and 286,366 at the 2020 Census; the official estimate as at mid 2023 was 298,979 (comprising 155,140 males and 143,860 females). The administrative centre is in the town of Bengkayang.

Bengkayang is in northern West Kalimantan, sharing a border with Sarawak in Malaysia. With arable land and favourable relief, the agricultural sector is the main economic source. Bengkayang is also rich in natural resources.

Bengkayang is still lagging in term of economic development, but there is a hope that providing local autonomy will catalyze development. A water processing plant has been developed, so the population can enjoy access to clean water.

When Bengkayang Regency was established, it originally composed into 10 districts (including three districts from administrative city of Singkawang), with the most recent at that time was Jagoi Babang, which was split off from the northern part of Seluas district in 1996 when the regency is still part of Sambas Regency. On 21 June 2001, Singkawang officially established as an autonomous city by splitting off from Bengkayang Regency, reducing the districts of that regency into seven. In 2002, three new districts were established (Monterado district was split off from the western part of Samalantan district, Teriak district was split off from the eastern part of Bengkayang district, and Suti Semarang district was split off from the western part of Ledo district), increasing the districts into 10. In 2004, another four new districts were established (Capkala district was cut out from the eastern part of Sungai Raya district, Sungai Betung district was cut out from the western part of Bengkayang district, Lumar district was cut out from the southern part of Ledo district, and Siding district was split off from the western part of Jagoi Babang district), increasing the number into 14 districts. In 2006, three more districts were established (Sungai Raya Kepulauan district was split off from the northern part of Sungai Raya district, Lembah Bawang district was split off from the northern part of Samalantan district, and Tujuh Belas district was re-established by splitting off from the eastern part of Sanggau Ledo district), increasing it into 17 districts.

The regency is divided into seventeen districts (kecamatan), tabulated 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 (a total of 122 rural desa and 2 urban kelurahan - the latter both in Bengkayang District), and its post code.

Kode Wilayah	Name of District (kecamatan)	Year formed	Area in km	Pop'n Census 2010	Pop'n Census 2020	Pop'n Estimate mid 2023	Admin centre	No. of villages	Post code
61.07.01	Sungai Raya (Raya River)	—	75.85	18,333	23,497	24,260	Sungai Duri	5	79272
61.07.11	Capkala	2004 (from Sungai Raya)	46.36	7,579	9,655	9,951	Capkala	6	79271
61.07.15	Sungai Raya Kepulauan (Raya River Islands)	2006 (from Sungai Raya)	237.87	20,922	29,015	30,651	Sungai Raya	5	79273
61.07.02	Samalantan	—	234.69	18,240	22,882	23,478	Samalantan	7	79280
61.07.08	Monterado	2002 (from Samalantan)	317.17	24,453	33,530	35,304	Monterado	11	79181
61.07.16	Lembah Bawang (Onion Valley)	2006 (from Samalantan)	360.80	5,191	6,476	6,634	Papan Uduk	8	79281
61.07.04	Bengkayang	—	167.05	23,764	33,385	35,398	Sebalo	6	79212 & 79213
61.07.09	Teriak	2002 (from Bengkayang)	299.70	12,464	17,001	17,873	Bana	18	79214
61.07.14	Sungai Betung (Betung River)	2004 (from Bengkayang)	182.39	8,919	12,193	12,827	Suka Maju	4	79211
61.07.03	Ledo	—	408.48	11,076	14,274	14,761	Lesabela	12	79283
61.07.10	Suti Semarang	2002 (from Ledo)	357.85	4,579	5,972	6,197	Suti Semarang	8	79288
61.07.13	Lumar	2004 (from Ledo)	373.51	5,764	8,111	8,605	Tiga Berkat	5	79282
61.07.06	Sanggau Ledo	—	273.05	11,198	15,197	15,953	Lembang	5	79284
61.07.17	Tujuh Belas	2006 (from Sanggau Ledo)	323.13	11,216	15,243	16,008	Pisak	4	79250
61.07.05	Seluas	—	506.50	17,051	20,930	21,340	Seluas	6	79285
61.07.07	Jagoi Babang	1996 (from Seluas)	655.02	8,277	10,848	11,271	Jagoi	6	79286
61.07.12	Siding	2004 (from Jagoi Babang)	563.32	6,251	8,157	8,466	Hlibuie	8	79287
	Totals		5,382.74	215,277	286,366	298,979	Bengkayang	124

Note: (a) includes coastal part of mainland Kalimantan as well as 12 offshore islands. (b) comprising 2 kelurahan (Sebalo and Bumi Emas) and 4 desa.

Regent	Vice Regent	Took Office	Last Office	Notice
Jacobus Luna		1999	2000
	Moses Ahie	2000	2005	First Period
	Suryadman Gidot	2005	2010	Second Period
Suryadman Gidot	Agustinus Naon	2010	2015	First Period
		2015	2019	Second Period
Agustinus Naon		2019	2020	Acting
Yohanes Budiman		2020	2020	Acting
Sebastianus Darwis	Syamsul Rizal	2021	present

Bengkayang has a tropical rainforest climate (Af) with heavy rainfall year-round.

1°04′09″N 109°39′50″E / 1.0691°N 109.6639°E / 1.0691; 109.6639