Ismail Ould Cheikh Ahmed told reporters in Geneva that the talks would begin December 15 in a venue to be determined. He pointed to "a number of good signs" that a cease-fire, which is to begin the same day, will be respected.
He said only Yemeni participants not foreigners would take part in the talks.
"Only a political solution will end the crisis in Yemen," said Ould Cheikh Ahmed. "We strongly believe that the only way to end the suffering of the Yemeni people and to rebuild confidence, trust, and mutual respect is through peaceful and inclusive dialogue."
The conflict in the impoverished Arabic Peninsula country pits the Shiite Houthis rebels and army units loyal to a former president against a loose alliance of pro-government forces, southern separatists and other militants.
The UN estimates that at least 5,700 people have died since the conflict escalated in March and a Saudi-led air campaign began.
The Houthis want broader negotiations on the country's political future.
