Haydar (Arabic: حيدر), also spelt Hajdar, Hayder, Heidar, Haider, Heydar, Haidr, and other variants, is an Arabic male given name, also used as a surname, meaning "lion".

In Islamic tradition, the name is primarily associated with Ali ibn Abi Talib (first Shia Imam and fourth Rashidun Caliph), the son-in-law and cousin of Muhammad, who was nicknamed "Haydar".^[1]

The variants Hyder and Hyderi (Urdu: حیدری) are Urdu variants used predominantly by Muslims in South Asia.

Hajdar

• Hajdar Blloshmi (1860–1936), Albanian politician
• Hajdar Muneka (1954–2022), Albanian journalist and diplomat

Haydar

Given name

• Ali, the son-in-law and cousin of the Islamic prophet Muhammad, said to have been nicknamed "Haydar".
• Haydar Pasha, Vizier of Ottoman Empire
• Haydar Aşan, Turkish Olympian
• Haydar Ergülen, Turkish poet
• Haydar Ghazi, second Wazir of Sylhet
• Haydar Hatemi, Iranian artist
• Haydar al-Kuzbari (1920–1996), Syrian military officer
• Haydar al-Sadr (1891–1937), Muslim Iraqi cleric and ayatollah
• Haydar Khan e Amo-oghli (1880–1921), revolutionary and military activist in Iran, Republic of Azerbaijan and Central Asia
• Haydar Zorlu, Turkish-German actor
• Haydar Astrakhani, Khan of Astrakhan from 1538 through 1541.
• Haydar Amuli, or Haydar al-'Obaydi al-Husayni Amoli, a Shi'ite mystic and Sufi philosopher

Middle name

• Ali Haydar Şen (born 1939), Turkish businessman
• Mohammed Haydar Zammar (born 1961), Syrian Muslim jihadist and al-Qaida recruiter

Surname

• Darren Haydar (born 1979), Canadian professional ice hockey player
• Kamal Haydar (1933–1980), Yemeni short story writer
• Paula Haydar (born 1965), American academic and translator
• Qutb ad-Dīn Haydar, Persian Sufi saint
• Shaykh Haydar (1459–1488), a religious leader of the Safaviyya from 1460 to 1488
• Sultan Haydar (born 1987), Turkish female long-distance runner of Ethiopian origin

Haidar

• Haidar Haidar (1936–2023), Syrian writer and novelist.
• Ibrahim Haidar (1867–1974), Lebanese politician
• Salim Haidar (1911–1980), Lebanese politician
• Haider Abbas Rizvi (born 1968), Pakistani Politician

Hayder

• Hayder Ali (1720 - 1782) Founder of Mysore Sultanate and Father of Tipu Sultan
• Baba Hayder e Safdar Wali, a Sufi Saint in Mulbagal, Karnataka, India
• Hayder of Crimea

Other variant spellings

For people with these variant spellings, see:

• Heidar
• Haider
• Heydar
• Hyder (name)
• Hyderi (name)
• Heydari (name)
• Aidar (disambiguation) - Brazilian Portuguese variant
• Aydar (disambiguation) - Brazilian Portuguese variant
• Gaidar (surname) - Russian (or Russian-influenced) variant