ʿAysūn ibn Sulaymān ibn Yaqdhān al-Kalbī al-Aʿrābī (), often known as Ayxun or Aisso, was the son of Sulayman al-Arabi, who was the wali of Barcelona and Girona in the late 8th century.
Aysun, together with his father Sulayman al-Arabi, joined Charlemagne's army that besieged Zaragoza in 778. When Zaragoza failed to surrender, Charlemagne took hostages from his allies, including Sulayman. According to Al-Udri, Aysun later escaped with the assistance of his servant Amrus.
Aysun shares his name with Aissó, leader of a revolt in 826. It has accordingly been suggested by historians including Al-Udri that as an elderly man Aysun escaped in the 826, to lead the revolt of the Goths and supporters of peace with the Muslims. However, there is no evidence to prove this, and it may simply have been a confusion of two different people with similar names.