The man tipped to win the presidency is Ferdinand "Bongbong" Marcos Jr, the son of the nation's former dictator.
If polls suggesting a landslide victory pan out, it will mean the powerful Marcos political dynasty, will sweep back into office.
His closest rival is Leni Rebredo who beat Marcos in the 2016 vice-presidential elections.
Thousands of other roles will also be up for grabs in the general election, including senator posts and seats in the House of Representatives.
