Sayf al-Din
Sayf al-Din, also Saif al-Din, Sayf/Saif ad-Din, or Sayf/Saif ud-Din etc., may refer to:
- Sayf al-Din Suri, Ghurid king
- Saif ad-Din Ghazi I, Zangid emir of Mosul
- Ghazi II Saif ud-Din, Zangid emir of Mosul
- al-Malik al-Adil Sayf al-Din Abu-Bakr ibn Ayyub, or just Al-Adil I, also known as "Saphadin",, Ayyubid sultan of Egypt
- Sayf al-Din al-Amidi, Islamic jurist
- Saifuddin Aibak, governor of Bengal
- Saif ad-Dīn al-Malik al-ʿĀdil Abū Bakr b. Nāṣir ad-Dīn Muḥammad, or just Al-Adil II, Ayyubid sultan of Egypt
- Saif ad-Din Qutuz, Mamluk sultan of Egypt
- Saif ad-Dīn Qalawun aṣ-Ṣāliḥī, Mamluk sultan of Egypt
- Saif ad-Din Abu-Bakr, Mamluk sultan of Egypt
- Al-Malik Az-Zahir Sayf ad-Din Barquq, Burji sultan of Egypt
- Saifuddin Hamza Shah, fourth Sultan of the first Ilyas dynasty of Bengal
- Sayf ad-Din Inal 13th Burji Mamluk sultan of Egypt
- Al-Ashraf Sayf al-Din Qaitbay,, Burji Mamluk Sultan of Egypt
- Al-Ashraf Sayf-ad-Din Barsbay,, Burji Mamluk Sultan of Egypt
- Sayf ad-Din Bilbay,, Burji Mamluk Sultan of Egypt
- Sayf ad-Din Jaqmaq,, Burji Mamluk Sultan of Egypt
- Sayf ad-Din Khushqadam,, Burji Mamluk Sultan of Egypt
- Sayf ad-Din Tatar,, Burji Mamluk Sultan of Egypt
- Sayf al-Din Malik Arslan, Beg of Dulkadir from 1454 to 1465
- Sayf ad-Din Tuman bay I, Burji Mamluk Sultan of Egypt
- Omar Ali Saifuddin I, Sultan of Brunei
- Omar Ali Saifuddin II, Sultan of Brunei
- Saifuddin Kitchlew, Muslim Indian lawyer and political activist
- Taher Saifuddin, leader of the Dawoodi Bohras community
- Seif el-Din el-Zoubi, Israeli-Arab politician
- Omar Ali Saifuddien III, Sultan of Brunei
- Saifuddin Azizi, Uyghur chairman of the people's council of Xinjiang, China
- Mohammad Saifuddin,Bangladeshi cricketer
- Saifuddin Ahmed, Bangladeshi film actor
- Saifuddin Soz, Indian academic and politician
- Mufaddal Saifuddin
- Salih Saif Aldin, Iraqi journalist
- Khamis Abdullah Saifeldin, Qatari runner
- Saifeddine Nejmaoui, Tunisian boxer
- Saifuddin Nasution Ismail, Malaysian politician
- Saifuddin Abdullah, Malaysian politician
- Saifuddin Choudhury, Indian politician
- Saifuddin or Saif Ahmad, American poker player
- The Seif al Din pathogen in ''Patient Zero: A [Joe Ledger Novel]''