Medieval Arabic authors used the term Jafnids for the Ghassanids, a term modern scholars prefer at least for the ruling stratum of Ghassanid society.
Earlier kings are traditional, actual dates highly uncertain.

Jafnah I ibn ‘Amr (220–265)
‘Amr I ibn Jafnah (265–270)
Tha‘labah ibn Amr (270–287)
al-Harith I ibn Tha‘labah (287–307)
Jabalah I ibn al-Harith I (307–317)
al-Harith II ibn Jabalah "ibn Maria" (317–327)
al-Mundhir I Senior ibn al-Harith II (327–330) with...
al-Aiham ibn al-Harith II (327–330) and...
al-Mundhir II Junior ibn al-Harith II (327–340) and...
al-Nu'man I ibn al-Harith II (327–342) and...
‘Amr II ibn al-Harith II (330–356) and...
Jabalah II ibn al-Harith II (327–361)
Jafnah II ibn al-Mundhir I (361–391) with...
al-Nu‘man II ibn al-Mundhir I (361–362)
al-Nu‘man III ibn ‘Amr ibn al-Mundhir I (391–418)
Jabalah III ibn al-Nu‘man (418–434)
al-Nu‘man IV ibn al-Aiham (434–455) with...
al-Harith III ibn al-Aiham (434–456) and...
al-Nu‘man V ibn al-Harith (434–453)
al-Mundhir II ibn al-Nu‘man (453–472) with...
‘Amr III ibn al-Nu‘man (453–486) and...
Hijr ibn al-Nu‘man (453–465)
al-Harith IV ibn Hijr (486–512)
Jabalah IV ibn al-Harith (512–529)
al-Amr IV ibn Machi (Mah’shee) (529)
al-Harith V ibn Jabalah (529–569)
al-Mundhir III ibn al-Harith (569–581) with...
Abu Kirab al-Nu‘man ibn al-Harith (570–582)
al-Nu'man VI ibn al-Mundhir (581–583)
al-Harith VI ibn al-Harith (583)
al-Nu‘man VII ibn al-Harith Abu Kirab (583–?)

al-Aiham ibn Jabalah (?–
614)
al-Mundhir IV ibn Jabalah (614–?)

Sharahil ibn Jabalah (?–
618)
Amr IV ibn Jabalah (628)
Jabalah V ibn al-Harith (628–632)
Jabalah VI ibn al-Aiham (632–638)
Medieval Arabic authors used the term Jafnids for the Ghassanids, a term modern scholars prefer at least for the ruling stratum of Ghassanid society. Earlier kings are traditional, actual dates highly uncertain.
Jafnah I ibn ‘Amr (220–265)
‘Amr I ibn Jafnah (265–270)
Tha‘labah ibn Amr (270–287)
al-Harith I ibn Tha‘labah (287–307)
Jabalah I ibn al-Harith I (307–317)
al-Harith II ibn Jabalah "ibn Maria" (317–327)
al-Mundhir I Senior ibn al-Harith II (327–330) with...
al-Aiham ibn al-Harith II (327–330) and...
al-Mundhir II Junior ibn al-Harith II (327–340) and...
al-Nu'man I ibn al-Harith II (327–342) and...
‘Amr II ibn al-Harith II (330–356) and...
Jabalah II ibn al-Harith II (327–361)
Jafnah II ibn al-Mundhir I (361–391) with...
al-Nu‘man II ibn al-Mundhir I (361–362)
al-Nu‘man III ibn ‘Amr ibn al-Mundhir I (391–418)
Jabalah III ibn al-Nu‘man (418–434)
al-Nu‘man IV ibn al-Aiham (434–455) with...
al-Harith III ibn al-Aiham (434–456) and...
al-Nu‘man V ibn al-Harith (434–453)
al-Mundhir II ibn al-Nu‘man (453–472) with...
‘Amr III ibn al-Nu‘man (453–486) and...
Hijr ibn al-Nu‘man (453–465)
al-Harith IV ibn Hijr (486–512)
Jabalah IV ibn al-Harith (512–529)
al-Amr IV ibn Machi (Mah’shee) (529)
al-Harith V ibn Jabalah (529–569)
al-Mundhir III ibn al-Harith (569–581) with...
Abu Kirab al-Nu‘man ibn al-Harith (570–582)
al-Nu'man VI ibn al-Mundhir (581–583)
al-Harith VI ibn al-Harith (583)
al-Nu‘man VII ibn al-Harith Abu Kirab (583–?)
al-Aiham ibn Jabalah (?–614)
al-Mundhir IV ibn Jabalah (614–?)
Sharahil ibn Jabalah (?–618)
Amr IV ibn Jabalah (628)
Jabalah V ibn al-Harith (628–632)
Jabalah VI ibn al-Aiham (632–638)
Ghassanids