Nizam al-Din (Arabic: نظام الدّین, romanized: Niẓām al-Dīn, lit. 'Good Order of the Faith'), spelled variously Nizamuddin or Nizamüddin or etc. may refer to:

• Niżām ad-Dīn Abū Muḥammad Ilyās ibn-Yūsuf ibn-Zakī ibn-Mu‘ayyad, or Nizami Ganjavi (1141–1209), Persian epic poet
• Nizamuddin Auliya (1238–1325), Sufi saint of the Chishti Order
• Nizamüddin Ahmed Pasha (fl. 1331–1348), Ottoman grand vizier
• Koca Mehmed Nizamüddin Pasha (died 1439), Ottoman grand vizier
• Nizam al-Din Yahya (c. 1417–1480), Mihrabanid malik of Sistan
• Jam Nizamuddin II (died 1509), sultan of the Samma Dynasty
• Mohammed Nizamuddin (d. 2016), Indian trade unionist and politician
• Nizamuddin Ahmad (1551–1621), Muslim historian of India
• Khwaja Nizam ad Din, Kashmiri Sufi
• G. Nizamuddin (born 1954), Indian politician
• Nizamuddin Shamzai (1952-2004) (Pakistani Islamic scholar)

• Nizamuddin West, Delhi
• Nizamuddin East, Delhi
• Hazrat Nizamuddin railway station, Delhi
• Nizamuddin Dargah, mausoleum in Delhi

• Hazrat Nizamuddin (disambiguation)
• Nizamettin (disambiguation)
• Nizami (disambiguation)
• Nizam (disambiguation)

This disambiguation page lists articles associated with the title Nizam al-Din.
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