Brøndby Kommune (Danish: [ˈpʁɶnpy kʰoˈmuːnə]), a municipality (Danish: kommune) in the former Copenhagen County (now Region Hovedstaden), is on the east coast of the island of Zealand (Sjælland) in eastern Denmark. The municipality covers an area of 20.85 km (8.05 sq mi), and has a total population of 39,067 (2024). Its mayor Kent Max Magelund, a member of the Social Democrats (Socialdemokraterne) political party.

The site of its municipal council is the town of Brøndbyvester. Neighboring municipalities are Hvidovre to the east, Rødovre to the north, Glostrup to the north, Albertslund to the northwest, and Vallensbæk to the west. To the south is Køge Bay (Køge Bugt).

The geography of Brøndby municipality was not affected by the nationwide Kommunalreformen ("The Municipality Reform" of 2007) on 1 January 2007.

Brøndby consists of three cities: Brøndbyvester (west), Brøndbyøster (east) and to the south Brøndby Strand.

Brøndbyvester is the "original" Brøndby and has several old farmhouses, but mostly consists of single family houses - this is a typical middle-class Danish suburb. Brøndby's name in Danish combines both "water well" and "town".

Brøndbyøster is east of the big intersection that parts the three different Brøndbys. (Brøndby Strand Projects 93), this part of the city has many older people and immigrants.

Brøndby Strand is a mix of those two cities. There are lot of single-family houses and 12 high-rise residential estates. It is the only area in Denmark where more than 50 percent of the population aren't Danish-born, nor of Danish descent. These four neighborhoods are also known as the Southside or Southcoast Copenhagen.

Brøndby is the home of Brøndby IF, a football club.

Brøndby's municipal council consists of 19 members, elected every four years.

Below are the municipal councils elected since the Municipal Reform of 2007.

Election	Party								Total seats	Turnout	Elected mayor
	A	B	C	F	O	V	Ø	Å
2005	11		1	1	2	3		1	19	61.1%	Ib Terp (A)
2009	7		1	4	4	2		1		58.2%
2013	10			1	4	3	1			64.6%
2017	11	1		1	3	2	1			62.0%	Kent Magelund (A)
Data from Kmdvalg.dk 2005, 2009, 2013 and 2017

Brøndby is twinned with:

• Botkyrka, Sweden
• Dorogomilovo (Moscow), Russia
• Stange, Norway
• Steglitz-Zehlendorf (Berlin), Germany

• Brøndbyøster railway station
• Brøndby Strand railway station

• Municipal statistics: NetBorger Kommunefakta, delivered from KMD aka Kommunedata (Municipal Data)
• Municipal mergers and neighbors: Eniro new municipalities map

• Municipality's official website
• (in Danish)Krak searchable/printable maps
• (in Danish)Krak map of Brøndby Archived 2012-03-20 at the Wayback Machine