List of state leaders in 840s BC Asia: West Kingdom of Judah —

| Type_ | Name_ | Title | Royal_house | From_ |
|---|---|---|---|---|
| Sovereign | Jehoshaphat | King | David | 873 BC or 871 BC or 870 BC |
| Sovereign | Jehoram | King | David | 851 BC or 849 BC or 848 BC |
| Sovereign | Ahaziah | King | David | 843 BC or 842 BC or 841 BC |
| Sovereign | Athaliah | Queen Regnant | David | 842 BC or 841 BC |
| Sovereign | Jehoash | King | David | 842 BC or 841 BC or 837 BC or 835 BC |