| Official Name: | Kungsbacka |
| Leader Title: | Mayor |
| Leader Name: | Lisa Andersson |
| Pushpin Map: | Sweden Halland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Kungsbacka Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Halland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Halland |
| Area Footnotes: | [1] |
| Area Total Km2: | 10.03 |
| Population As Of: | 31 December 2018 |
| Population Total: | 23,000 |
| Population Density Km2: | 1901 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 57.4833°N 16°W |
Kungsbacka (in Swedish pronounced as /kɵŋsˈbaˈka/) is a locality and the seat of Kungsbacka Municipality in Halland County, Sweden, with 19,057 inhabitants in 2010. It is a part of Greater Gothenburg Metropolitan Area.
It is one of the most affluent parts of Sweden, in part due to its simultaneous proximity to the countryside and the large city of Gothenburg. Its mayor since 2020 is Lisa Andersson.
The first records referring to Kungsbacka as a town date from the 15th century, when it was part of Denmark. By the time it was recognised as part of Sweden (1658), the river running through the town, on which some transportation of goods took place, was almost completely overgrown and despite pleas to restore its function, this did not occur. Some trade still took place from the coast, but the town's significance as a place of naval commerce declined over the centuries. Today, it is home to over 2,000 enterprises, and the river still runs through it.
A devastating fire in 1846 destroyed the town centre, sparing only a little red wooden cabin which still stands today. In late 2006 and early 2014 other fires affected the town centre, and construction work is ongoing to restore the loss of wooden buildings.
The town remained small until the 1960s. The municipal reform of 1971 made it the seat of the much larger Kungsbacka Municipality. The town began to grow as a part of Metropolitan Gothenburg. It is the southern terminus of the Gothenburg commuter rail system, situated 28 km from central Gothenburg.
The following cities are twinned with Kungsbacka:[2]
The following sports clubs are located in Kungsbacka:
