Eldin, an alternative transliteration of Ad-Din ("faith", "religion"), is a given name and a surname.

It may refer to:

People

• Eldin Adilović (born 1986), Bosnian footballer
• Eldin Huseinbegović, Bosnian singer-songwriter
• Eldin Jakupović (born 1984), Bosnian-Swiss footballer
• Eldin Karisik (born 1983), Bosnian-Swedish footballer
• Dzulmi Eldin (born 1960), mayor of Medan, North Sumatra
• Mohammed Eldin (born 1985), Sudanese footballer
• Mohamed Bahaa Eldin (born 1947), Egyptian politician
• Mohamed Hossam Eldin (born 2001), Egyptian footballer
• Peter Eldin (born 1939), British author and magician

Fictional characters

• Eldin the Wanderer, in the Cthulhu Mythos story cycle

See also

• John Clerk of Eldin (1728–1812), a figure in the Scottish Enlightenment, remembered for his writings on naval tactics in the Age of Sail
  • John Clerk, Lord Eldin (1757–1832), Scottish judge, eldest son of John Clerk of Eldin
• Elden (disambiguation)
• Eldon (disambiguation)