Ahmad ibn Tughan al-Ujayfi (Arabic: أحمد بن توغان العجيفي) was the governor of Tarsus, Antioch, and the Abbasid Caliphate's borderlands in Cilicia (al-thughur al-Shamiya) for the semi-autonomous Tulunid dynasty from 891 to 896.
Ahmad ibn Tughan al-Ujayfi appears for the first time in 891, during the governorship of Yazaman al-Khadim in Tarsus.
In the previous year, Yazaman had acknowledged the suzerainty of the Tulunid ruler Khumarawayh against that of the Abbasid central government under the regent al-Muwaffaq.
The latter did not remain in the post for long, as he was deposed and seized in August 892 in an uprising of the populace of Tarsus, angry at a Tulunid attempt to imprison the local magnate Raghib and confiscate his property.
[3][8] In September 896, he supervised the prisoner exchange with the Byzantines on the Lamos River, which began on 16 September and lasted for twelve days, leading to the ransoming of 2,504 Muslim men, women and children according to al-Tabari, while al-Mas'udi variously numbers the exchanged prisoners as 2,495 or 3,000.