Baha' al-Din

• A. K. M. Bahauddin, Bangladeshi politician and the Member of Parliament from Comilla
• Salaheddine Bahaaeddin (born 1950), Kurdish Iraqi politician

• AFM Bahauddin Nasim, Bangladeshi politician and former Member of Parliament from Madaripur

Alphabetically by surname (tentatively):

• Bahaedin Adab (1945–2007), Iranian Kurdish politician and engineer
• Bahauddin Baha (born 1942), contemporary Afghan judge
• Bahauddin Dagar (born 1970), Indian musician
• Mufti Baha-ud-din Farooqi, 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, Prime Minister of Lebanon
• Bahaa el-Din Ahmed Hussein el-Akkad (born 1949), Egyptian former Muslim sheikh who converted to Christianity
• 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

• Baha al-Din al-Muqtana (d. c. 1042), founder of the Druze Faith
• 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

• Mandi Bahauddin, town and district in Pakistan