Greece goes to the polls on May 21 to elect its new parliament.
Voting will take place under a new system of proportional representation in the 300-seat Greek Parliament, making it harder for any party to gather a majority and increasing the likelihood of a two-round vote.
Runoff elections will likely be held in July.
The ruling party leads the polls ahead of the parliamentary elections to be held on May 21.
According to the poll conducted by the public opinion research company ALKO with the participation of 1,000 people on April 18-22, approximately 31.6% of the respondents said they would vote for the conservative "New Democracy Party".
New Democracy Party was followed by the left main opposition party "SYRIZA" with 25.4% and the social democratic "PASOK-KINAL" party with 8.9%.
While approximately 6.1% of the respondents supported the "Communist Party of Greece", 3.8% stated that they would vote for the far-right populist "Greek Solution Party".
Former Finance Minister Yanis Varoufakis' left-wing party "MeRA25" is expected to receive 3.7%, while the neo-Nazi party "National Party", founded by imprisoned former Golden Dawn official Ilias Kasidiaris, is expected to receive 3.2%.
Meanwhile, 11.2% of voters are still undecided before the elections.