The Capital Region of Denmark (Danish: Region Hovedstaden) is the easternmost administrative region of Denmark, established on January 1, 2007 as part of the 2007 Danish Municipal Reform, which replaced the traditional counties (Danish plural: amter, singular: amt) with five larger regions. At the same time, smaller municipalities were merged into larger units, cutting the number of municipalities from 271 before 1 January 2006, when Ærø Municipality was created, to 98. The reform was implemented on January 1, 2007.

The Capital Region of Denmark consists of the municipalities of Copenhagen and Frederiksberg, the former counties of Copenhagen and Frederiksborg, and the regional municipality of Bornholm. In Danish the name is Region Hovedstaden, which is one of five regions in Denmark.

Without the remote island municipality Bornholm, located 150 km (93 mi) southeast of Copenhagen and 135 km (84 mi) directly east of Vordingborg Municipality (Møn) (across the Baltic Sea), the population is over 1,700,000 (January 1, 2014) on an area of 1,978.91 km² (764 sq. m.) (according to www.noegletal.dk) with a density of over 860 per km² (2,230 per sq m), as opposed to over 680 (1,760) with all 29 municipalities included.

Before 2007, a Danish Capital Region, (Danish: Hovedstadsregionen) did exist, but it did not cover exactly the same area and did not have the same legal function.

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