Flen () is a locality and the seat of Flen Municipality, Södermanland County, Sweden with 6,229 inhabitants in 2010.
Flen is also famous for having the world's northernmost vineyard, in Blacksta.
Riksdag elections
This list charts the urban area of Flen itself rather than the namesake municipality of which Flen is the seat.
{| class="wikitable sortable" style=text-align:right
!Year
!%
!Votes
!V
!S
!MP
!C
!L
!KD
!M
!SD
!NyD
!Left
!Right
|-
|align=left|1973
| 92.0
| 4,383
| 3.2
| 54.3
|
| 21.1
| 8.8
| 2.1
| 10.4
|
|
| 57.5
| 40.2
|-
|align=left|1976
| 91.8
| 4,575
| 3.0
| 53.4
|
| 21.0
| 8.7
| 2.2
| 11.6
|
|
| 56.3
| 41.3
|-
|align=left|1979
| 90.5
| 4,708
| 3.7
| 53.6
|
| 16.2
| 9.7
| 1.9
| 14.4
|
|
| 57.3
| 40.3
|-
|align=left|1982
| 91.8
| 4,708
| 4.2
| 57.6
| 1.1
| 12.6
| 4.4
| 2.4
| 17.1
|
|
| 61.8
| 34.1
|-
|align=left|1985
| 89.5
| 4,556
| 4.5
| 57.5
| 1.2
| 10.7
| 10.9
|
| 14.8
|
|
| 62.0
| 33.5
|-
|align=left|1988
| 85.4
| 4,270
| 5.5
| 55.7
| 4.3
| 9.2
| 10.0
| 2.5
| 12.4
|
|
| 65.5
| 31.5
|-
|align=left|1991
| 84.4
| 4,117
| 4.4
| 51.7
| 2.3
| 8.1
| 7.7
| 6.5
| 14.7
|
| 4.2
| 56.1
| 37.0
|-
|align=left|1994
| 86.3
| 4,197
| 6.3
| 59.1
| 3.8
| 5.1
| 5.3
| 3.6
| 15.2
|
| 0.7
| 69.1
| 29.1
|-
|align=left|1998
| 79.9
| 3,910
| 13.4
| 48.7
| 3.5
| 3.6
| 2.6
| 10.7
| 15.8
|
|
| 65.6
| 32.7
|-
|align=left|2002
| 77.6
| 3,781
| 7.9
| 54.5
| 3.8
| 3.8
| 9.6
| 7.5
| 10.5
| 0.8
|
| 66.1
| 31.5
|-
|align=left|2006
| 79.0
| 3,843
| 5.8
| 54.6
| 3.1
| 4.5
| 4.9
| 5.4
| 17.4
| 2.5
|
| 63.6
| 32.3
|-
|align=left|2010
| 79.2
| 3,824
| 6.2
| 46.2
| 5.1
| 3.7
| 5.2
| 5.0
| 21.6
| 6.3
|
| 57.5
| 35.6
|-
|align=left|2014
| 82.2
| 3,939
| 5.7
| 42.1
| 4.8
| 3.5
| 3.1
| 3.7
| 16.3
| 18.6
|
| 52.6
| 26.7
|-
|align=left|2018
| 80.5
| 3,877
| 7.6
| 40.7
| 3.1
| 5.1
| 2.6
| 5.2
| 15.0
| 19.8
|
| 56.4
| 42.6
|}