Voters will choose between President Recep Tayyip Erdoğan, who is seeking reelection, main opposition candidate Kemal Kiliçdaroğlu, and Sinan Oğn.
Muharrem Ince, another presidential contender, withdrew from the race on Thursday.
More than 30 political parties and over 150 independent parliamentary candidates will compete in the elections.
There are five multiparty blocs in the running: the People's Alliance, Nation Alliance, Ancestral Alliance, Labor and Freedom Alliance, and Union of Socialist Forces Alliance.
