Baha al-Din or Bahaa ad-Din (), or various variants like Bahauddin, Baha eddine or (in Turkish) Bahattin, may refer to:
Surname A. K. M. Bahauddin (born 1954), Bangladeshi politician and the Member of Parliament from Comilla Salaheddine Bahaaeddin (born 1950), Kurdish Iraqi politician
Middle name AFM Bahauddin Nasim (born 1961), Bangladeshi politician and former Member of Parliament from Madaripur
Given name
Bahaedin Adab (1945–2007), Iranian Kurdish politician and engineer Bahauddin Baha (born 1941), contemporary Afghan judge Bahauddin Dagar (born 1970), Indian musician Mufti Baha-ud-din Farooqi (1927–2014), contemporary Indian judge Bahaddin Gaziyev (born 1965), Azerbaijani journalist Rafic Hariri, full name: Rafic Baha El Deen Al-Hariri (1944–2005), Lebanese businessman and politician Qawwal Bahauddin Khan (1934–2006), Pakistani musician Bahattin Köse (born 1990), Turkish-German footballer Behaeddin Shakir, aka Bahattin Şakir (1874–1922), Turkish political activist Bahattin Sofuoğlu (1978–2002), Turkish motor cycle racer Bahattin Sofuoğlu (2003) (born 2003), Turkish motor cycle racer
Religious honorific name (laqab) Baha al-Din al-Muqtana (died c. 1042), founder of the Druze Faith Baha al-Din Qaraqush (died 1201), military commander under Saladin Baha ad-Din ibn Shaddad (1145–1234), jurist and scholar, biographer of Saladin Baha-ud-din Zakariya (c. 1170 – 1268), Sufi teacher Baha' al-din Zuhair (1186–1258), Arabian poet Baha-ud-Din Naqshband Bukhari (1318–1389), founder of Sufi Muslim order, the Naqshbandi Baha' ad-Din al-`Amili (1547–1621), Persian and Lebanese scholar and poet Rahmizâde Bâhâeddin Bediz (Rahmi Bediz since 1934; 1875–1951), Turkish photographer
Places Mandi Bahauddin, town and district in Pakistan
See also Baha (name)