electionstracker

Greece September 2015 parliamentary election

What was the result of the September 2015 parliamentary election in Greece?

Syriza won 145 of 300 seats with 35.5% of the vote. 56.6% of registered voters cast a ballot.

  • Greece
  • Held:
  • Final result
  • ParlGov, read 5 October 2026

Which party won the most seats?

Final results from ParlGov, read : Syriza won 145 of 300 seats with 35.5% of the vote; 56.6% of registered voters cast a ballot, down 7.3 points on 2015.

  • Syriza 145 −4 seats 35.5% −0.9 points
  • New Democracy 75 −1 seat 28.1% +0.3 points
  • Golden Dawn 18 +1 seat 7.0% +0.7 points
  • PASOK 17 +4 seats 6.3% +1.6 points
  • Communist Party of Greece 15 0 seats 5.5% +0.1 points
  • The River 11 −6 seats 4.1% −2.0 points
  • Independent Greeks 10 −3 seats 3.7% −1.1 points
  • Union of Centrists 9 +9 seats 3.4% +1.6 points
  • Seats won
  • Change on the previous election at the right
  • Share of the vote
  • Share at the previous election
  • Change in points at the right

Changes are against the Greece January 2015 parliamentary election, party by party.

151 of 300 seats make a majority

Key numbers

  1. 35.5%

    Share of the vote won by Syriza

    Syriza won 145 of 300 seats. A majority needs 151.

  2. +9 seats

    Seats gained by Union of Centrists

    The largest gain in seats compared with 2015. The River lost 6 seats.

  3. 56.6%

    Voter turnout

    Down 7.3 points on 2015.

Seats and votes by party

PartySeats± seats%± pointsVotes
Syriza145−435.5−0.91,925,904
New Democracy75−128.1+0.31,526,205
Golden Dawn18+17.0+0.7379,581
PASOKwith Democratic Left17+46.3+1.6341,390
Communist Party of Greece1505.5+0.1301,632
The River11−64.1−2.0222,166
Independent Greeks10−33.7−1.1200,423
Union of Centrists9+93.4+1.6186,457
Popular Unity / Course of Freedom02.9155,242

± is the change against the Greece January 2015 parliamentary election, party by party.

Votes by party
  • Syriza 1,925,904
  • New Democracy 1,526,205
  • Golden Dawn 379,581
  • PASOK 341,390
  • Communist Party of Greece 301,632
  • The River 222,166
  • Independent Greeks 200,423
  • Union of Centrists 186,457
  • Popular Unity / Course of Freedom 155,242

ParlGov lists parties with at least 1 percent of the vote or 2 seats, so the rows do not add up to the valid votes.

ParlGov counts an alliance's votes and seats under its first party: such a row names the allies it counts.

How many people voted?

56.6% of the 9,840,525 registered voters cast a ballot (5,566,295 ballots), down 7.3 points on 2015. 5,431,850 of them were valid votes. The lowest turnout of this kind in our data, which begins in 1974.

How do the votes compare with the seats?

  • Syriza35.5% of votes48.3% of seats
  • New Democracy28.1% of votes25.0% of seats
  • Golden Dawn7.0% of votes6.0% of seats
  • PASOK6.3% of votes5.7% of seats
  • Communist Party of Greece5.5% of votes5.0% of seats
  • The River4.1% of votes3.7% of seats
  • Independent Greeks3.7% of votes3.3% of seats
  • Union of Centrists3.4% of votes3.0% of seats
  • Popular Unity / Course of Freedom2.9% of votes0.0% of seats
Each party's share of the vote (outlined) and of the seats (filled)

The Gallagher index of disproportionality is 9.6 (0 when seats follow votes exactly); the effective number of parties is 4.5 by votes and 3.2 by seats; Syriza led New Democracy by 7.4 points of the vote.

Time and source Data as of