Illah is a town in Delta State, Nigeria on the west bank of the River Niger.
Illah may also refer to:
Al-Mu’id li-Din Illah (died 1030), Yemeni imam Illah, Khuzestan, Iran ʿillah, or effective cause, used in the Islamic legal practice of qiyas
See also
Allah (disambiguation) Ilah Illa (disambiguation) Illahe Elah (disambiguation) Elahi (disambiguation) "Ilahi", a song from the 2013 Indian film Yeh Jawaani Hai Deewani