The conservative Law and Justice party, which has governed the country for eight turbulent years, won slightly over 35% of the votes, making it the single party with the most votes.
But the party and its leader Jarosław Kaczyński lost their majority in parliament and appeared to have no way to hold onto power.
The official ballot announced by the National Electoral Commission aligns closely with an exit poll released after voting ended Sunday.
Political Cartoons View All 1211 ImagesThe result was a huge victory for Donald Tusk, the head of the largest opposition group, Civic Coalition.
The National Electoral Commission said that Law and Justice won slightly over 35% of the votes, and the far-right Confederation, a possible ally, about 7%.
Persons:
Jarosław Kaczyński, Donald Tusk
Organizations:
Justice, National, Commission, Law, Civic Coalition, European Council, European Union, Electoral Commission, Left
Locations:
WARSAW, Poland, Germany, Russia, Ukraine