Al-Wathiq (disambiguation)
Al-Wathiq () was the ninth Abbasid caliph, ruling from 842 to his death in 847. 

The name can also refer to:

 al-Wathiq I (d. after 1341), Caliph of Mamluk Cairo in 1340–1341 
 al-Wathiq II (d. 1386), Caliph of Mamluk Cairo in 1383–1386
 Idris al-Wathiq (d. 1269), last Almohad ruler in 1266–1269
 Yahya II al-Wathiq (d. 1279), Hafsid sultan of Ifriqiya in 1277–1279
 al-Wathiq al-Mutahhar  (1303–1379/80), Zaydi imam of Yemen in 1349
 Muhammad ibn Ahmad al-Wathiq, Marinid sultan of Fez in 1386–1387