The name Ziauddin is a common transliteration of the male Muslim given name more correctly written Ḍiya ad-Dīn (). It means the “Shine of the Religion” It may refer to:
People Ziauddin Barani (1285–1357), Indian historian and political philosopher Ziauddin Muhammad (flourished in the 17th century), scientific instrument maker in the Mughal Empire; one of the fourth generation of the Lahore family of astrolabists Ziauddin Ahmad (1878–1947), scholar and politician in colonial India Ziauddin Ahmad Suleri (1913–1999), Pakistani journalist and writer Mohammad Ziauddin (army officer) (born 1939), Bangladeshi military officer Zia Uddin (born 1941), Bangladeshi Islamic scholar Ziauddin Ahmed (Bangladesh) (1950–2017), Bangladeshi military officer Ziauddin Sardar (born 1951), Pakistani writer on Islam Ziauddin Ahmed Bablu (1954–2021), Bangladeshi politician Ziyaettin Doğan or Ziya Doğan (born 1961), Turkish football manager Ziaeddin Niknafs (born 1986), Iranian footballer Ziauddin Rizvi (died 2005), Shi'a cleric from Gilgit Qari Ziauddin (died 2010), Afghan militia leader Ziauddin Butt, a Pakistani military officer jailed as a result of the 1999 Pakistani coup d'état Ziauddin (Afghan militia leader), Afghan militia leader Muhammad Ziauddin Yusuf (born 1986), British businessman and politician
See also Ziauddin Pur, census town in India Qarah Zia od Din, town in West Azarbaijan province, Iran Dr. Ziauddin Group of Hospitals, hospital group in Pakistan named in honor of Ziauddin Ahmed Ziauddin Medical University, medical school in Karachi, Pakistan named in honor of Ziauddin Ahmed