Muizuddin

Muizuddin is an Arabic given name and regnal epithet. The form is derived from mu'izz, meaning "one who strengthens or honors," together with al-Din, meaning "the faith," yielding "strengthener of the faith" or "defender of the faith." The name is used across Muslim lands and has many transliterations, including Mu'izz ud-Din, Mu'izz al-Din, Muizuddin, Muiz-ud-Din, and Muizzuddin.

Historical usage: A prominent bearer is Mu'izz ud-Din Muhammad, also known as Muhammad of Ghor (c. 1149–1206), a Ghorid ruler who expanded his realm into the Indian subcontinent. He captured Delhi in 1192, a conquest that helped inaugurate Muslim rule in northern India and set the stage for the Delhi Sultanate. In various chronicles and inscriptions he is styled Mu'izz al-Din Muhammad.

Beyond this figure, Muizuddin has been a common personal name in Persianate and South Asian contexts, used by poets, scholars, and members of royal families as well as by ordinary Muslims. In modern usage the name remains popular in countries such as Pakistan, India, Bangladesh, and parts of the Middle East, often appearing in full name forms or as part of honorific titles.