| Official Name: | Tvååker |
| Pushpin Map: | Sweden Halland#Sweden |
| Subdivision Type: | Country |
| Subdivision Name: | Sweden |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Varberg Municipality |
| Subdivision Type2: | County |
| Subdivision Name2: | Halland County |
| Subdivision Type1: | Province |
| Subdivision Name1: | Halland |
| Area Footnotes: | [1] |
| Area Total Km2: | 2.23 |
| Population As Of: | 31 December 2010 |
| Population Total: | 2,534 |
| Population Density Km2: | 1134 |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 57.05°N 36°W |
Tvååker is the second largest locality situated in Varberg Municipality, Halland County, Sweden, with 2,534 inhabitants in 2010. It is located about 15 km south-east of Varberg.
The actual name Tvååker could be translated as twofield (or twoacre). But it is instead a corruption of the name Toaker (1198). The word to has been interpreted as flax, i.e. "flax field".[2]
The village has a lower secondary school, Bosgårdsskolan as well as an upper secondary school, Munkagårdsgymnasiet, which is focused on animal care, agriculture, forestry and landscaping.
The football team, Tvååkers IF was formed in 1920 and has a male team for the first time as high as 2nd league and a joint female team with Galtabäck in the 5th league. A floorball-team, Tvååkers IBK, was formed in 1986 and played in the top league for two seasons in the early 1990s.
Other sports clubs located in Tvååker include: