Amin al-Din, also transcribed Amin ad-Din and Amin ud-Din, is an Arabic name meaning "Trustee of the Faith". It is the name of:
Amin al-Din Rashid al-Din Vatvat, 13th-century Persian physician Amin ud-din Ahmad Khan (1911–1983), Nawab of the state of Loharu Aminuddin Dagar (1923–2000), Indian dhrupad singer Mian Aminuddin, Chief Commissioner of Balochistan between 1949 and 1952 Aminuddin Harun, Malaysian politician
See also Institut Aminuddin Baki, Malaysian educational management institute SMK Aminuddin Baki, Johor Bahru, Malaysian public national school SMK Aminuddin Baki, Kuala Lumpur, Malaysian public school