Mahdia is a city in Tunisia.
Mahdia may also refer to: Mahdia Governorate in Tunisia Mahdia, Guyana History of Mahdist Sudan Mehdya, a city in Morocco
Mahdiyya or al-Mahdiyya may refer to:
The Fatimid caliphate of Abdullah al-Mahdi Billah (909–934) Mahdist Sudan (1885–1899)
See also Mahdi (disambiguation) Mahdist (disambiguation) Mahdiyeh (disambiguation) Mehdiyan, a cemetery in Delhi, India