Kenyatta has won 50.03% of the vote according to provisional figures.
HM the King expressed to Kenyatta his warmest congratulations and best wishes for every success in his high function towards fulfilling the aspirations of the Kenyan people for further progress and prosperity.
"The confidence that the Kenyan people have placed in you shows their hopes to move forward under your leadership towards achieving development and establishing the values of democracy," the Sovereign said.
HM the King also expressed to the Kenyan President his firm determination to strengthen relations of African brotherhood, mutual understanding and fruitful cooperation between the two countries, and to further diversify them for the benefit of the two brotherly peoples, and for development, stability and unity of the African continent.