Phan Khắc Sửu was a South Vietnamese engineer and politician who served as a minister in Bảo Đại's government of the State of Vietnam and as a civilian Chief of State of South Vietnam from 1964–65 during the rule of the various military juntas.

Presidential elections were held in South Vietnam on 3 September 1967. The result was a victory for Nguyễn Văn Thiệu, who received 35% of the vote. Voter turnout was 83%. The elections are widely considered to have been fraudulent.