Al-Mundhir ibn al-Ḥārith, known in Greek sources as (Flavios) Alamoundaros, is the king of the Ghassanid Arabs from 569 to circa 581.
A son of Al-Harith ibn Jabalah, he succeeds his father both in the kingship over his tribe and as the chief of the Byzantine Empire's Arab clients and allies in the East, with the rank of patricius.
Despite his victories over the rival Persian-backed Lakhmids, throughout Mundhir's reign his relations with Byzantium are lukewarm due to his staunch Monophysitism.
This leads to a complete breakdown of the alliance in 572, after Mundhir discoversByzantine plans to assassinate him.
Relations are restored in 575 and Mundhir secures from the Byzantine emperor both recognition of his royal status and a pledge of tolerance towards the Monophysite Church.
In 580 or 581, Mundhir participates in an unsuccessful campaign against the Persian capital, Ctesiphon, alongside the Byzantine general (and future emperor) Maurice.
The failure of the campaign leads to a quarrel between the two and Maurice accuses Mundhir of treason.
Byzantine agents capture Mundhir, who is brought to Constantinople but never faces trial.
His arrest provokes an uprising among the Ghassanids under Mundhir's son al-Nu'man VI.
When Maurice ascends the throne in 582, Mundhir is exiled to Sicily although, according to one source, he is allowed to return to his homeland after Maurice's overthrow in 602.
