Grängesberg () 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" ().
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.
It is the birthplace of Erik Lundqvist, a javelin thrower, the first person to break the barrier by .
Riksdag elections Year%VotesVSMPCLKDMSDNyDLeftRight1973 86.1 3,633 14.8 63.4 12.8 3.7 0.5 4.1 78.3 20.61976 87.9 3,788 12.2 65.8 11.9 4.4 0.6 4.7 78.0 20.91979 86.8 3,553 12.7 68.8 7.4 3.6 0.4 6.1 81.5 17.11982 91.2 3,583 12.9 70.4 1.2 7.2 1.5 0.4 6.1 83.3 14.81985 89.0 3,363 13.2 69.9 1.4 4.2 5.5 5.7 83.1 15.41988 84.7 3,073 13.2 68.5 3.5 4.2 5.0 1.2 4.2 85.2 13.41991 84.3 3,025 9.6 65.8 1.6 3.4 3.7 2.9 6.3 5.7 75.4 16.41994 85.4 2,885 12.6 69.0 3.5 2.6 2.2 1.1 6.4 1.6 85.2 12.31998 78.9 2,413 26.9 55.0 2.4 1.1 0.8 5.3 6.8 84.3 14.02002 76.3 2,230 17.5 63.2 3.2 2.0 2.4 2.3 4.8 1.6 83.9 14.02006 77.9 2,187 14.0 59.7 2.2 2.8 1.9 2.4 9.9 4.0 75.9 17.02010 78.7 2,262 11.2 52.5 3.1 2.2 2.4 1.8 15.1 10.4 66.9 21.52014 83.8 2,377 9.3 46.8 2.4 1.6 1.5 1.6 8.7 26.7 58.6 13.32018 83.6 2,352 10.9 33.9 0.9 3.5 2.3 3.1 8.8 34.8 49.2 48.92022 9.5 30.0 0.6 2.0 1.4 6.6 8.7 40.0 42.0 56.7
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