Ali Abdullah Saleh al-Ahmar was a Yemeni politician who served as the first President of the Republic of Yemen, from Yemeni unification on 22 May 1990, to his resignation on 27 February 2012, following the Yemeni Revolution. Previously, he had served as President of the Yemen Arab Republic, or North Yemen, from July 1978, to 22 May 1990, after the assassination of President Ahmad al-Ghashmi.

The president of the Republic of Yemen is the head of state of Yemen. Under the Constitution of Yemen, the president is also the Supreme Commander of the Armed Forces and head of the executive branch of the Yemeni government.