Brussels has warned that the vote on 26 October, seen as a crucial test of democracy in the Caucasus country, will determine the EU candidate's chances.
Official results from more than 99 percent of polling stations show the ruling Georgian Dream party winning 54.08 percent of the vote, while the alliance of four pro-Western opposition unions garnered 37.58 percent, Central Election Commission Chairman Giorgi Kalandarishvili told a news conference.
"The elections were held in a calm and free atmosphere," he said.
The results will give Georgian Dream 91 seats in the 150-member parliament - enough to govern, but not enough for the "constitutional majority" of 113 seats it sought to ban all major opposition parties.
"Georgian Dream has secured a solid majority," the party's executive secretary, Mamuka Mdinaradze, told reporters.
An opinion poll conducted by the US polling agency Edison Research showed the opposite result.
The opposition parties said they did not recognise the result of the elections, calling them "fake".
Tina Bokuchava, leader of the opposition United National Movement (UNM), which campaigned on a pro-European platform, said the results were "rigged" and the election "stolen".
"This is an attempt to steal Georgia's future," she said, saying the MHP does not accept the results.
Nika Gvaramia, leader of the Akhali party, called the way the vote was conducted a "constitutional coup" by the government.
"Georgian Dream will not stay in power," he said.
In power since 2012, Georgian Dream initially pursued a liberal pro-Western political agenda. But in the last two years it has changed course.
Its campaign has focused on a "global war party" that controls Western institutions and seeks to drag Georgia into the war between Russia and Ukraine.
Observers from the Organisation for Security and Cooperation in Europe (OSCE) will give a press conference later this afternoon to present their preliminary findings. | BGNES