A night of triumph for Erdogan saw the man who has dominated Turkey for the last 15 years declared winner of Sunday's presidential poll without needing a second round and lead his ruling party-led alliance to an overall majority in parliament.
Erdogan vowed to "rapidly" implement the new presidential system agreed in an April 2017 referendum that opponents fear will give him autocratic powers and keep him in office for two five year mandates to 2028.
The new system creates a vertical of power with Erdogan at the top, giving him the power to appoint cabinet ministers and dispensing with the office of prime minister.
The president, 64, declared victory in Istanbul before returning to Ankara to deliver a triumphant speech at 3:00 am to tens of thousands of supporters from the balcony of the headquarters of his Justice and Development Party (AKP).
"Turkey has given a lesson in democracy to the entire world," he added, pointing to a turnout of 88 percent.