Snap parliamentary elections were held in Greece on 25 June 2023. All 300 seats in the Hellenic Parliament were contested. Prime Minister Kyriakos Mitsotakis called for the snap vote after the May 2023 elections did not result in any party gaining a majority, although his centre-right New Democracy made unanticipated gains and increased its share of the vote. As a result, no coalition government was formed by any of the parties eligible to do so.

In contrast to the May elections, the June vote used a majority bonus system, making a majority government more likely. On 25 May 2023, as required by Greece's constitution, President Katerina Sakellaropoulou appointed Ioannis Sarmas as caretaker prime minister until the formation of the next government following the elections.

New Democracy increased their number of seats in parliament, achieving a majority, while the main opposition Syriza lost seats. Minor parties Spartans, Victory, and Course of Freedom entered parliament for the first time.

Electoral system

New Democracy has been a proponent of majority bonuses since 1974. Soon after returning to power in the 2019 parliamentary election, they passed a new electoral law to reinstate the bonus that had been eliminated by the SYRIZA-ANEL coalition government's 2016 law (which established a purely proportional system with a 3% electoral threshold), albeit under a very different formula. The party list coming first with at least 25% of the votes would receive 20 extra seats, with one more seat for every half percentage point above 25%, to a maximum of 50 extra seats at 40% (or more) of the votes. Once this bonus has been attributed, the proper proportional distribution begins for the remaining seats, which can range from 250 if one party gathered at least 40%, to 300 if no party reached 25%. This 2020 law would take effect starting from the next Greek election after the May 2023 election.

A 2019 law granted the right to vote for Greeks abroad who have lived for two years in Greece during the previous 35 years and who have submitted a tax return during the year of the election or the previous year. Voters from abroad choose the national-wide ballot of their desired party without choosing candidates, and their vote is counted equally in final results. Voting is theoretically compulsory, with voter registration being automatic, but the penalties and sanctions in place for those who do not vote are unenforced.

Contesting parties, alliances and independents On 8 June 2023 the Supreme Court ruled that 26 political parties, 4 alliances and 2 independents had met the criteria to contest the election. Nineteen of these had also participated in the previous election. The names of the 32 entities are listed below in alphabetical order.

Anticapitalist Left Cooperation for the Overthrow Assembly of Greeks Athanasios Georgiou (Independent) Breath of Democracy Communist Party of Greece Communist Party of Greece (Marxist–Leninist) Course of Freedom Digital Hellenism in the Whole Ecologist Greens – Green Unity Greek Ecologists Greek Solution Green & Purple Marxist–Leninist Communist Party of Greece European Realistic Disobedience Front 25 Movement of the Poor National Front New Democracy Organization for the Reconstruction of the Communist Party of Greece Organisation of Internationalist Communists of Greece Panathinaikos Movement Panhellenic Socialist Movement – Movement for Change Patriotic Coalition Popular European Party Republican Party of Greece – Technocratic Republican Reforming Front of Patriots Spartans Spentzas Polykarpos, Radio Operator of the Ship "Pothiti", 1978 – Bermuda Triangle – UFO – USO Extraterrestrials – Einstein – Santorinis Pavlos (Independent) Syriza – Progressive Alliance Union of Centrists Democratic Patriotic Movement – Victory Vision for the Greek Renaissance Voice of Reason Well – Movement

Main Parties Party or alliance Leader Ideology Slogan English translation ND Kyriakos Mitsotakis Liberal conservatism «Σταθερά, Τολμηρά, Μπροστά» "Steady, Boldly, Forward" SYRIZA Alexis Tsipras Social democracy «Δίκαιη Κοινωνία. Ευημερία για Όλους» "Just Society. Prosperity for All" PASOK-KINAL Nikos Androulakis Social democracy «Απόφαση αλλαγής» "Decision for change" KKE Dimitris Koutsoumpas Communism «100% Λαϊκή, Μαχητική Αντιπολίτευση» "100% People's, Fighting Opposition" SP Vasilis Stigkas Ultranationalism «Για την πιο ισχυρή Εθνική Αντιπολίτευση» "For the strongest National Opposition" EL Kyriakos Velopoulos National conservatism «Πρώτα η Ελλάδα, Πρώτα οι Έλληνες» "Greece First, Greeks First" NIKI Dimitris Natsios Religious conservatism «Διεκδικούμε την Ελλάδα που μας αξίζει» "We claim the Greece we deserve" PE Zoe Konstantopoulou Progressivism «Δώσε Ζωή στην Βουλή» "Give Life (Zoe) to the Parliament" M25 Yanis Varoufakis Progressivism «Θέλεις αυτήν τη φωνή στη Βουλή;» "Do you want this voice on in parliament?"

Opinion polls

Results New Democracy won 41% of the vote, which allowed it to gain 50 bonus seats. This led to New Democracy winning a majority of seats. Syriza won nearly 18% of the vote. The newly created Spartans party won 4.7% of the vote, which allowed it to enter Parliament. Overall, eight parties crossed the 3% threshold to enter Parliament. The turnout was at 54%, which was 7 pp lower than the turnout in the May election. Reacting to his party's victory, Mitsotakis said, "The people have given us a safe majority. Major reforms will go ahead quickly." According to political analyst Nick Malkoutzis, "Mitsotakis has been rewarded by voters as the leader who has led Greece out of a severe debt crisis and three international bailouts back into a growth path. Someone who has kept, at least some, of his pledges which is more than many in Greece had previously done."

Largest and smallest percentages for each elected party

Parties' performance + New Democracy's vote share SYRIZA's vote share PASOK's vote share Communist Party's vote share Spartans' vote share Greek Solution's vote share Victory's vote share Course of Freedom's vote share MeRA25's vote share

By region RegionNDSYRIZAPASOKKKESpartansELVictoryPEMERA25%S%S%S%S%S%S%S%S%SAttica42.814118.19127.7759.59104.3763.6462.8643.6863.24–Central Greece40.27917.77313.1427.7115.17–4.32–3.22–3.12–1.99–Central Macedonia38.772515.25810.6636.4025.2727.6546.1533.5122.34–Crete37.27819.02120.7655.9413.7712.48–2.31–2.79–2.51–Eastern Macedonia and Thrace37.851020.21315.1534.03–4.95–6.0114.23–2.22–1.70–Epirus39.60623.13313.4217.61–3.62–2.86–2.63–2.05–2.06–Ionian Islands38.15418.24112.05110.65–4.99–3.03–2.14–4.74–2.62–North Aegean40.82312.98–15.08213.1913.91–3.70–2.60–2.43–1.77–Peloponnese43.441116.27413.7735.84–5.77–3.86–3.15–2.72–2.12–South Aegean46.85813.52–13.6414.94–5.04–4.23–3.00–3.29–1.99–Thessaly41.181317.24312.8118.4924.8013.56–3.9112.55–1.99–Western Greece36.43921.97415.2436.9324.5623.50–3.7212.94–1.86–Western Macedonia38.04518.18214.4816.53–4.37–4.77–5.54–2.46–2.05–Greece40.56717.83311.8427.6914.68–4.4413.7013.17–2.50–

By constituency