alt=Map of the country roads through Älvsborg county and Dalsland in 1731.|thumb|300x300px|Map of the country roads through Älvsborg county and Dalsland in 1731.
Dalsland () is a Swedish traditional province, or landskap, situated in Götaland in southern Sweden. Lying to the west of Lake Vänern, it is bordered by Värmland to the north, Västergötland to the southeast, Bohuslän to the west, and Norway to the northwest.
The province has a low population density of around 14 inhabitants/km<sup>2</sup> and just one town of significant size: Åmål. The total population numbers 50,604.
| 90.6
| 31,885
| 1.7
| 38.3
|
| 39.0
| 7.9
| 2.1
| 10.8
|
|
| 0.1
|-
|align=left|1976
| 91.6
| 33,199
| 1.7
| 36.7
|
| 39.2
| 8.1
| 1.8
| 12.5
|
|
| 0.1
|-
|align=left|1979
| 90.4
| 33,314
| 2.2
| 38.0
|
| 33.1
| 8.0
| 1.9
| 16.7
|
|
| 0.2
|-
|align=left|1982
| 90.8
| 33,503
| 2.2
| 40.4
| 1.3
| 29.3
| 5.4
| 2.3
| 19.1
|
|
| 0.1
|-
|align=left|1985
| 88.7
| 32,724
| 2.6
| 40.3
| 1.4
| 25.7
| 12.3
|
| 17.5
|
|
| 0.1
|-
|align=left|1988
| 84.5
| 30,825
| 3.1
| 41.0
| 5.4
| 24.1
| 9.6
| 3.4
| 13.4
|
|
| 0.1
|-
|align=left|1991
| 85.5
| 31,079
| 2.7
| 35.7
| 2.5
| 18.2
| 6.5
| 9.6
| 16.3
|
| 8.1
| 0.3
|-
|align=left|1994
| 84.8
| 30,330
| 4.4
| 44.6
| 5.3
| 16.6
| 5.2
| 5.0
| 17.5
|
| 1.1
| 0.4
|-
|align=left|1998
| 79.5
| 27,527
| 10.4
| 37.3
| 4.3
| 11.6
| 3.4
| 14.8
| 16.1
|
|
| 2.0
|-
|align=left|2002
| 77.4
| 26,025
| 6.4
| 42.2
| 3.2
| 14.8
| 9.3
| 11.7
| 10.2
| 1.0
|
| 1.3
|-
|align=left|2006
| 79.2
| 26,173
| 5.0
| 39.7
| 3.5
| 14.7
| 5.2
| 7.6
| 18.4
| 3.0
|
| 2.9
|-
|align=left|2010
| 81.6
| 26,665
| 4.9
| 35.2
| 4.7
| 11.3
| 5.5
| 6.0
| 25.0
| 6.5
|
| 0.8
|-
|align=left|2014
| 83.7
| 26,802
| 4.0
| 35.1
| 3.6
| 10.6
| 3.3
| 4.5
| 16.5
| 19.8
|
| 2.5
|-
|align=left|2018
| 85.7
| 26,941
| 5.1
| 29.6
| 2.5
| 10.2
| 3.0
| 7.0
| 14.6
| 26.8
|
| 1.3
|}
History
The first recorded use of the term "Dalsland" dates to 1508. Before then, the term used was "Dal", or "de Dal", literally meaning "Valley" or "the Valleys", which referred to two specific valleys in the southern area closest to Vänern.
The area has around 5,000 localized ancient remains. They indicate the origin of the inhabitants to stem from the south and the province Bohuslän; dialectal studies and social aspects have come to a similar conclusion.
In the 13th century, the inhabitants were referred to as "West Geats west of Vänern" by King Magnus Ladulås. The oldest provincial law from 1442 called the region "Dal in Västergötland". All sources point to them being a – remote – part of the province of Västergötland.