Qabus ibn al-Mundhir (Arabic: قابوس ابن المنذر; in Greek sources Καβόσης, Kaboses) was the king of the Lakhmid Arabs from 569 to 573.

[1] He succeeded his brother 'Amr III ibn al-Mundhir (r. 554–569).

Not much is known of his reign except that he suffered a heavy defeat at the hands of the rival Byzantine-sponsored Ghassanid tribe under Al-Mundhir III ibn al-Harith in 570.

After his death, the Lakhmids were ruled by a Persian governor for a year, until Qabus' brother al-Mundhir IV ibn al-Mundhir (r. 574–580) ascended to the throne.

This biography of a member of a Middle Eastern royal house is a stub.