Editing Democrats 66 (section)

=== European Parliament ===
{| class="wikitable" style="text-align: center;"
|-
! Election
! Lead candidate
! List
! Votes
! %
! Seats
! +/–
! EP Group
|-
! [[1979 European Parliament election in the Netherlands|1979]]
| [[Aar de Goede]]
| [[Party lists in the 1979 European Parliament election in the Netherlands#D'66|List]]
| style="text-align: right;" | 511,967
| style="text-align: right;" | 9.03
| style="text-align: right;" | {{Composition bar compact|2|25|hex={{party color|Democrats 66}}}}
| New
| ''[[Non-Inscrits|NI]]''
|-
! [[1984 European Parliament election in the Netherlands|1984]]
| [[Doeke Eisma]]
| [[Party lists in the 1984 European Parliament election in the Netherlands#D'66|List]]
| style="text-align: right;" | 120,826
| style="text-align: right;" | 2.28
| style="text-align: right;" | {{Composition bar compact|0|25|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{decrease}} 2
| –
|-
! [[1989 European Parliament election in the Netherlands|1989]]
| rowspan="2" | [[Jan-Willem Bertens]]
| [[Party lists in the 1989 European Parliament election in the Netherlands#D66|List]]
| style="text-align: right;" | 311,990
| style="text-align: right;" | 5.95
| style="text-align: right;" | {{Composition bar compact|1|25|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{increase}} 1
| [[European Liberal Democrat and Reform Party Group|LDR]]
|-
! [[1994 European Parliament election in the Netherlands|1994]]
| [[Party lists in the 1994 European Parliament election in the Netherlands#D66|List]]
| style="text-align: right;" | 481,826
| style="text-align: right;" | 11.66
| style="text-align: right;" | {{Composition bar compact|4|31|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{increase}} 3
| rowspan="2" | [[European Liberal Democrat and Reform Party Group|ELDR]]
|-
! [[1999 European Parliament election in the Netherlands|1999]]
| [[Lousewies van der Laan]]
| [[Party lists in the 1999 European Parliament election in the Netherlands#D66|List]]
| style="text-align: right;" | 205,623	
| style="text-align: right;" | 5.80
| style="text-align: right;" | {{Composition bar compact|2|31|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{decrease}} 2
|-
! [[2004 European Parliament election in the Netherlands|2004]]
| rowspan="6" | [[Sophie in 't Veld]]
| [[Party lists in the 2004 European Parliament election in the Netherlands#Democrats 66 (D66)|List]]
| style="text-align: right;" | 202,502
| style="text-align: right;" | 4.25
| style="text-align: right;" | {{Composition bar compact|1|27|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{decrease}} 1
| rowspan="4" | [[Alliance of Liberals and Democrats for Europe group|ALDE]]
|-
! rowspan="2" | [[2009 European Parliament election in the Netherlands|2009]]
| rowspan="2" | [[Party lists in the 2009 European Parliament election in the Netherlands#Democrats 66 (D66)|List]]
| style="text-align: right;"  rowspan="2" | 515,422
| style="text-align: right;"  rowspan="2" | 11.32
| style="text-align: right;" | {{Composition bar compact|3|25|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{increase}} 2
|-
| style="text-align: right;" | {{Composition bar compact|3|26|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{steady}} 0
|-
! [[2014 European Parliament election in the Netherlands|2014]]
| [[Party lists in the 2014 European Parliament election in the Netherlands#Democrats 66 (D66) - ALDE|List]]
| style="text-align: right;" | 735,825
| style="text-align: right;" | 15.48
| style="text-align: right;" | {{Composition bar compact|4|26|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{increase}} 1
|-
! rowspan="2" | [[2019 European Parliament election in the Netherlands|2019]]
| rowspan="2" | [[Party lists in the 2019 European Parliament election in the Netherlands#Democrats 66 (D66) - ALDE|List]]
| style="text-align: right;" rowspan="2" | 389,692
| style="text-align: right;" rowspan="2" | 7.09
| style="text-align: right;" | {{Composition bar compact|2|26|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{decrease}} 2
| rowspan="3" | [[Renew Europe|RE]]
|-
| style="text-align: right;" | {{Composition bar compact|2|29|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{steady}} 0
|-
! [[2024 European Parliament election in the Netherlands|2024]]
| [[Gerben-Jan Gerbrandy]]
| [[Party lists in the 2024 European Parliament election in the Netherlands#D66|List]]
| style="text-align: right;" | 523,650
| style="text-align: right;" | 8.40
| style="text-align: right;" | {{Composition bar compact|3|31|hex={{party color|Democrats 66}}}}
| style="text-align: right;" | {{increase}} 1
|}