The polls in Sunday papers To Vima, Proto Thema and Real News show New Democracy with between 21.5-23.1 percent, compared to 20.2-22 percent for SYRIZA. New Democracy's leads are below 2 percent but confirm a recent trend in favor of the party.
The government recently backed more spending cuts and tax rises to get more bailout funds from international creditors. SYRIZA opposes the austerity but says it supports Greece's membership of the euro.
Extreme right Golden Dawn is third in the polls with between 8.4-10.5 percent.
All three surveys had a sample of around 1,000 and error margins of around 3 percent.
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