Grängesberg (Swedish pronunciation: [ˈɡrɛ̂ŋːɛsˌbærj]) is a locality situated in Ludvika Municipality, Dalarna County, Sweden, with 3,481 inhabitants in 2010.

The town was dominated by iron-ore extraction at Grängesberg ore field (Grängesbergs malmfält) from the 16th century to 1989. In January 1990 was the last ore-train from Grängesberg to Oxelösund.

Attempts to separate apatite from the ore begun in 1928 but were more clearly successful from the late 1930s to 1953. Aparite was separated by "soap flotation" (Swedish: tvålflotation).

Grängesbergsbolaget had during a long period the world's largest iron-ore fleet and by 1899–1900 was it Sweden's most profitable company. During this time Grängesberg grew very fast, and during a 10-year period the town's population increased threefold. Today Spendrups is Grängesberg's biggest employer.

The area is known for its Railway Museum of Grängesberg.

Riksdag elections

Year	%	Votes	V	S	MP	C	L	KD	M	SD	NyD	Left	Right
1973	86.1	3,633	14.8	63.4		12.8	3.7	0.5	4.1			78.3	20.6
1976	87.9	3,788	12.2	65.8		11.9	4.4	0.6	4.7			78.0	20.9
1979	86.8	3,553	12.7	68.8		7.4	3.6	0.4	6.1			81.5	17.1
1982	91.2	3,583	12.9	70.4	1.2	7.2	1.5	0.4	6.1			83.3	14.8
1985	89.0	3,363	13.2	69.9	1.4	4.2	5.5		5.7			83.1	15.4
1988	84.7	3,073	13.2	68.5	3.5	4.2	5.0	1.2	4.2			85.2	13.4
1991	84.3	3,025	9.6	65.8	1.6	3.4	3.7	2.9	6.3		5.7	75.4	16.4
1994	85.4	2,885	12.6	69.0	3.5	2.6	2.2	1.1	6.4		1.6	85.2	12.3
1998	78.9	2,413	26.9	55.0	2.4	1.1	0.8	5.3	6.8			84.3	14.0
2002	76.3	2,230	17.5	63.2	3.2	2.0	2.4	2.3	4.8	1.6		83.9	14.0
2006	77.9	2,187	14.0	59.7	2.2	2.8	1.9	2.4	9.9	4.0		75.9	17.0
2010	78.7	2,262	11.2	52.5	3.1	2.2	2.4	1.8	15.1	10.4		66.9	21.5
2014	83.8	2,377	9.3	46.8	2.4	1.6	1.5	1.6	8.7	26.7		58.6	13.3
2018	83.6	2,352	10.9	33.9	0.9	3.5	2.3	3.1	8.8	34.8		49.2	48.9
2022			9.5	30.0	0.6	2.0	1.4	6.6	8.7	40.0		42.0	56.7