Parliamentary elections were held in Greece on 9 April 2000. The ruling PASOK of Prime Minister Costas Simitis was narrowly re-elected, defeating the conservative New Democracy party. Simitis formed his third cabinet.
The election was characterized by the large electoral increase in support for both PASOK, and New Democracy.
Opinion polls
{| class="wikitable" style="text-align:center; font-size:95%; line-height:16px;"
|- style="height:42px;"
! style="width:250px;" rowspan="2"| Polling firm/commissioner
! style="width:125px;" rowspan="2"| Fieldwork date
! style="width:55px;"| PASOK
! style="width:55px;"| ND
! style="width:55px;"| KKE
! style="width:55px;"| Syn
! style="width:55px; font-size:90%;"| DIKKI
! style="width:55px; font-size:90%;"| POLAN
! style="width:55px; font-size:90%;"| Fil
! style="width:30px;" rowspan="2"| Lead
|-
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
! style="color:inherit;background:;"|
|-
| colspan="10" style="background:#A0A0A0"|
|- style="background:#EFEFEF;"
| 2000 parliamentary election
| 9 Apr 2000
| | 43.8<br/>
| 42.7<br/>
| 5.5<br/>
| 3.2<br/>
| 2.7<br/>
| –
| –
| style="background:; color:white;"| 1.1
|-
| colspan="10" style="background:#A0A0A0"|
|-style="background:#EAFFEA;"
| Opinion/Mega exit poll
| 9 Apr 2000
| 41.5–44.0
| | 42.5–44.5
| 5.5–6.0
| 3.0–4.0
| 2.0–3.0
| –
| –
| style="background:; color:white;"| 0.8
|-style="background:#EAFFEA;"
| Metron Analysis/ANT1 exit poll
| 9 Apr 2000
| | 41.7–44.1
| 41.6–44.0
| 4.4–5.6
| 3.3–4.5
| 2.1–3.1
| –
| –
| style="background:; color:white;"| 0.1
|-style="background:#EAFFEA;"
| Kappa Research/Star exit poll
| 9 Apr 2000
| 42.4
| | 43.2
| 5.3
| 3.7
| 2.8
| –
| –
| style="background:; color:white;"| 0.8
|-style="background:#EAFFEA;"
| Alco/Alpha exit poll
| 9 Apr 2000
| 41.4–42.4
| | 42.2–43.2
| 5.5–6.1
| 3.8–4.4
| 2.6–3.1
| –
| –
| style="background:; color:white;"| 0.8
|-style="background:#EAFFEA;"
| Sofres/ERT exit poll
| 9 Apr 2000
| | 43.2
| 42.9
| 5.3
| 3.7
| 2.8
| –
| –
| style="background:; color:white;"| 0.3
|-
| colspan="10" style="background:#A0A0A0"|
|-
| Alco/Alpha
| 16-22 Mar 2000
| | 41.5
| 41.3
| 6.0
| 4.5
| 4.8
| –
| –
| style="background:; color:white;"| 0.2
|-
| Opinion/Mega
| 14-20 Mar 2000
| | 40.6
| 40.1
| 5.7
| 4.5
| 4.7
| –
| –
| style="background:; color:white;"| 0.5
|-
| Alco/Alpha
| 6-15 Mar 2000
| | 40.8
| 40.1
| 5.7
| 4.5
| 5.7
| –
| –
| style="background:; color:white;"| 0.7
|-
| MRB
| 7-13 Mar 2000
| | 40.4
| 40.1
| 5.7
| 4.7
| 4.2
| –
| –
| style="background:; color:white;"| 0.3
|-
| Kappa Research/Star
| 9-11 Mar 2000
| | 42.1
| 41.7
| 5.5
| 4.7
| 4.3
| –
| –
| style="background:; color:white;"| 0.4
|-
| Metron Analysis/ANT1
| 1-11 Mar 2000
| | 41.9
| 40.8
| 4.9
| 4.4
| 4.6
| –
| –
| style="background:; color:white;"| 1.1
|-
| Metron Analysis/ANT1
| 22 Feb-6 Mar 2000
| | 41.4
| 40.4
| 5.6
| 4.8
| 5.1
| –
| 0.5
| style="background:; color:white;"| 1.0
|-
| VPRC
| 14 Feb-5 Mar 2000
| | 41.3
| 39.0
| 5.7
| 4.9
| 5.0
| 0.7
| 0.3
| style="background:; color:white;"| 2.3
|-
| Data Research
| 7 Feb-3 Mar 2000
| 40.6
| | 41.8
| 5.7
| 3.5
| 5.6
| –
| –
| style="background:; color:white;"| 1.2
|-
| MRB
| 15 Feb-1 Mar 2000
| | 43.1
| 40.6
| 5.8
| 4.6
| 4.3
| 0.5
| 1.1
| style="background:; color:white;"| 2.5
|-
| Alco/Alpha
| 15-25 Feb 2000
| | 40.8
| 39.9
| 6.0
| 4.0
| 4.3
| –
| 0.6
| style="background:; color:white;"| 0.9
|-
| Opinion/Mega
| 8-16 Feb 2000
| | 42.6
| 39.5
| 6.2
| 3.8
| 4.0
| 0.6
| 0.7
| style="background:; color:white;"| 3.1
|-
| Alco/Alpha
| 25 Jan-3 Feb 2000
| 39.4
| | 40.8
| 6.2
| 4.3
| 5.3
| 0.5
| 1.0
| style="background:; color:white;"| 1.4
|-
| Kappa Research/Star
| 20 Jan-3 Feb 2000
| | 41.2
| 40.3
| 5.5
| 4.0
| 3.8
| 1.4
| 0.8
| style="background:; color:white;"| 0.9
|-
| Data Research
| 7-23 Jan 2000
| 38.9
| | 40.6
| 6.6
| 4.8
| 7.2
| 0.2
| 0.5
| style="background:; color:white;"| 1.7
|-
| VPRC
| 2-22 Dec 1999
| 38.4
| | 40.6
| 6.4
| 4.4
| 5.3
| 0.6
| 0.6
| style="background:; color:white;"| 2.2
|-
| MRB
| 24 Nov-9 Dec 1999
| | 39.0
| 37.7
| 6.9
| 4.9
| 5.9
| 1.7
| 0.6
| style="background:; color:white;"| 1.3
|-
| Metron Analysis/ANT1
| 2-16 Nov 1999
| | 39.3
| 37.8
| 6.3
| 5.8
| 6.8
| 1.3
| 0.6
| style="background:; color:white;"| 1.5
|-
| Alco/Alpha
| 29 Sep-12 Oct 1999
| 36.5
| | 39.9
| 7.4
| 4.7
| 6.4
| 1.5
| 0.8
| style="background:; color:white;"| 3.4
|-
| Opinion/Mega
| 16-30 Sep 1999
| 36.6
| | 37.3
| 6.6
| 3.4
| 6.9
| 1.1
| 0.7
| style="background:; color:white;"| 0.7
|-
| VPRC
| 17-29 Sep 1999
| 36.0
| | 39.2
| 6.4
| 5.4
| 6.6
| 1.3
| 0.9
| style="background:; color:white;"| 3.2
|-
| Metron Analysis/ANT1
| 14-24 Sep 1999
| | 39.1
| 38.2
| 6.5
| 5.1
| 6.0
| 1.3
| 1.3
| style="background:; color:white;"| 0.9
|-
| Metron Analysis
| 10-18 Jul 1999
| 37.3
| | 38.2
| 7.3
| 5.4
| 6.1
| 1.2
| 1.2
| style="background:; color:white;"| 0.9
|- style="background:#EFEFEF;"
| 1999 European election
| 13 Jun 1999
| 32.9
| | 36.0
| 8.7
| 5.2
| 6.9
| 2.3
| 1.6
| style="background:; color:white;"| 3.1
|-
| Metron Analysis
| 19 May-11 Jun 1999
| 35.1
| | 37.2
| 7.6
| 6.4
| 7.2
| 2.4
| 1.6
| style="background:; color:white;"| 2.1
|-
| Metron Analysis
| 29 May-8 Jun 1999
| 35.0
| | 38.1
| 7.4
| 6.0
| 7.5
| 1.4
| 1.5
| style="background:; color:white;"| 3.1
|-
| Metron Analysis
| 12-23 May 1999
| 36.3
| | 38.8
| 6.8
| 6.2
| 5.8
| 2.7
| 1.2
| style="background:; color:white;"| 2.5
|-
| Metron Analysis
| 22 Apr-3 May 1999
| 36.3
| | 40.5
| 6.3
| 7.3
| 5.7
| 2.1
| –
| style="background:; color:white;"| 4.2
|-
| Metron Analysis
| 24 Mar-1 Apr 1999
| 36.9
| | 38.8
| 6.8
| 7.4
| 6.2
| 2.5
| –
| style="background:; color:white;"| 1.9
|-
| Metron Analysis
| 25 Jan-3 Feb 1999
| 35.9
| | 41.4
| 5.6
| 6.0
| 6.5
| 2.3
| –
| style="background:; color:white;"| 5.5
|-
| colspan="10" style="background:#A0A0A0"|
|- style="background:#EFEFEF;"
| 1996 parliamentary election
| 22 Sep 1996
| | 41.5<br/>
| 38.1<br/>
| 5.6<br/>
| 5.1<br/>
| 4.4<br/>
| 2.9<br/>
|–
| style="background:; color:white;"| 3.4
|-
| colspan="10" style="background:#A0A0A0"|
|}
Results
thumb|Results, showing the winning party in each municipal unit.