Abdullah ibn Husayn ibn Nasser al-Ahmar (Arabic: عبد الله بن حسين بن ناصر الأحمر) (1 November 1933 – 29 December 2007) was a Yemeni politician and tribal leader. He was the Speaker of the House of Representatives (Yemen) from 1993 to 2007 and also the Sheikh of the Hashid tribal federation and the Al-Islah party.
He inherited the position of Sheikh (elder) of the Hashid tribal federation from his father, Husayn Bin Nasser al-Ahmar, who was executed by Imam Ahmad bin Yahya. As a result, during the North Yemen Civil War Abdullah al-Ahmar sided with the Republicans against the Royalists and was appointed governor of Hajjah, but he refused to join the Egyptian-backed government of Abdullah as-Sallal. After Egypt withdrew from Yemen, he helped topple the Sallal government and his tribes provided crucial support to the new regime of Abdul Rahman al-Iryani against the Royalists.