2023 Syriza leadership election

A leadership election was held in September 2023 within Syriza after the resignation of leader Alexis Tsipras following the June 2023 legislative election. It was won by Stefanos Kasselakis after two rounds of voting.

Background
After the June 2023 Greek legislative election, Syriza received a record low percentage of 17.83% since the May 2012 Greek legislative election. Tsipras announced his resignation 4 days after the elections on 29 June 2023. He stated that the party needs, "profound renewal and refoundation". Sokratis Famellos took his place as president of the parliamentary group.

All party members of Syriza who were aged 15-years-old and above before 17 September 2023 could vote in the leadership election. The vote was held under the two-round system.

Candidates
Effie Achtsioglou announced her intention to run for presidency on 12 July from the Athens Conservatoire. A day later, Euclid Tsakalotos announced his candidacy. Nikos Pappas announced his candidacy during the central committee’s meeting, on 15 July. Stefanos Tzoumakas, member of the Executive Committee also announced his candidacy during the central committee meeting. In August 2023, Stefanos Kasselakis announced that he would be running in the election.

Opinion polls
Leadership Election voting intention by Metron Analysis for MEGA TV:


 * Stefanos Kasselakis: 39%
 * Effie Achtsioglou: 31%
 * Euclid Tsakalotos: 13%
 * Nikos Pappas: 3%
 * Stefanos Tzoumakas: 3%

Results
Kasselakis was the top vote-getter in the first round of the leadership contest on 17 September 2023 with Effie Achtsioglou in second place.

As no candidate received over 50% of the vote in the first round there was a run-off election between the top two candidates, those being Stefanos Kasselakis and Effie Achtsioglou, on 24 September 2023.

In the second round Kasselakis received 55.98% of the vote and Achtsioglou received 44.02%, giving Kasselakis the victory. Kasselakis spoke of wanting Syriza to emulate the U.S. Democratic Party and move to the centre-left.