Ghani and his US-backed government have not been involved in months of negotiations between Washington and the Taliban on an agreement for US troops to leave in exchange for a Taliban promise that Afghanistan will not be used by militants to plot attacks.
While the pact is expected to include a Taliban commitment to open power-sharing talks with their Afghan rivals, it is not expected to include a Taliban ceasefire with the government, leading to fears the insurgents will fight on when US forces leave.
"Peace is a desire for each Afghan and peace will come, there shouldn't be any doubt about it," Ghani told a gathering for prayers marking the Eid al-Adha Muslim festival.
"But we want a peace in which each Afghan has dignity... We don't want a peace that would cause our people to leave their country."
Zalmay Khalilzad, the veteran Afghan-American diplomat leading negotiations with the Taliban for Washington, said he hoped this would be the last Eid that Afghanistan was at war.
"I know Afghans yearn for peace. We stand with them and are working hard toward a lasting & honorable peace agreement and a sovereign Afghanistan which poses no threat to any other country," he said in a post on Twitter.
The Taliban and the United States have both reported significant progress in their negotiations, with one Taliban official saying a pact could be signed after the Eid holiday.
An agreement would allow US President Donald Trump to achieve his aim of ending a war launched in the days after the Sept. 11, 2001, attacks on the United States.
The Taliban do not recognize the Kabul government and have refused to talk to it.
Ghani made no reference to the United States or to the expected US-Taliban pact but said Afghans should decide their fate, not outside powers, even if they were allies.
"Our future cannot be decided outside, whether in the capital cities of our friends or neighbors. The fate of Afghanistan will be decided here in Afghanistan," he said.
He also said a presidential election, scheduled for Sept. 28, in which he hopes to win a second term, was essential.
The Taliban have denounced the election as a sham and threatened to attack rallies. There has been speculation the vote could be postponed if the United States struck the deal with the militants, but Ghani said it was vital."The Afghan people want a strong, efficient and responsible government, and this is not possible without elections," he said.