Kibaki declared Thursday a public holiday for Kenyans to "celebrate the historic achievement by Senator Obama and our country."
"This is a momentous day not only in the history of the United States of America, but also for us in Kenya. The victory of Senator Obama is our own victory because of his roots here in Kenya. As a country, we are full of pride for his success," Kibaki said in a statement.
The Democratic Party senator’s late father was born in Kenya.
"We the Kenyan people are immensely proud of your Kenyan roots. Your victory is not only an inspiration to millions of people all over the world, but it has special resonance with us her in Kenya," Kibaki said in a message to Obama.
"I am confident that your presidency shall herald a new chapter of dialogue between the American people and the world at large."