Qahtan (or Kahtan),^[a] Qahtani (or Kahtani),^[b] and Al-Qahtani (or Al-Kahtani)^[c] are Arabic names. They may refer to:

• Qahtan (tribe), an Arab tribal confederation in Saudi Arabia
• Qahtanite or Qahtani, Arabs who originate from the southern region of the Arabian Peninsula, especially from Yemen

• Al Qahtan, a village in Saudi Arabia, located in the northern part of Al-Namas governorate
• Al-Qahtaniyah, Raqqa Governorate, a town in Raqqa Governorate in northern Syria
• Al-Qahtaniyah, al-Hasakah Governorate, a town in al-Hasakah Governorate in northeastern Syria
• Qahtaniyah, Iraq, an Iraqi town about 100 km (62 mi) from Mosul and a few miles south of Sinjar

• Qahtan al-Attar (born 1950), Iraqi singer
• Qahtan Chathir Drain, Iraqi national footballer
• Qahtan Muhammad al-Shaabi (1920–1981) South Yemeni politician, the first President of the People's Republic of South Yemen

• Najeeb Qahtan Al-Sha'abi (born 1953), Yemeni politician

• Abdul Qader Qahtan (born 1952), Yemeni jurist
• Riya Qahtan, Iraqi Kurdish politician

Surname derived from the Qahtanite, Qahtani or Qahtan people from Arabia

• Abu Maria al-Qahtani (Maysar Ali Musa Abdullah al-Juburi 1976–2024) Iraqi Islamic militant fighting in the Syrian Civil War and a former commander and Shura Council member in Jabhat al-Nusra
• Abdullah Hamid Mohammed Al-Qahtani, Guantanamo detainee
• Abdul Atif Al-Qahtani, Saudi javelin thrower
• Attiya Al-Qahtani (born 1953), Saudi middle-distance runner
• Abdulrahman Al-Qahtani (born 1983), Saudi Arabian footballer
• Haji Bakr Al-Qahtani (born 1964), Saudi Arabian sprinter
• Iman al-Qahtani, Saudi journalist and activist
• Jabir Hasan Muhamed Al Qahtani, Guantanamo detainee
• Jabran al-Qahtani, Guantanamo detainee
• Khaled Al-Qahtani (born 1985), Kuwaiti footballer
• Majed Al-Qahtani (born 1990), Saudi footballer
• Mohammed al-Qahtani (disambiguation), many people with the name including
  • Mohammed al-Qahtani (Mohammed Mani Ahmad al-Qahtani), Guantanamo detainee, "20th hijacker"
  • Mohammad Fahad al-Qahtani, co-founder of a Saudi Arabian human rights organisation
  • Mohammed Saleh Al Qahtani, Board Member of the Boy Scouts of Bahrain
  • Mohammed Abdullah Al Qahtani, World Champion of Public Speaking 2015
• Nourah al-Qahtani, academic imprisoned for alleged social media activity
• Osama bin Laden, "bin Laden" is a patronymic, not a hereditary surname. According to one of his sons, Omar, the hereditary surname of Osama bin Laden was āl-Qaḥṭānī, but Osama's father, Mohammed bin Laden, never officially registered the name.
• Saud al-Qahtani, a Saudi Arabian consultant and former royal court advisor, allegedly involved in the assassination of Jamal Khashoggi
• Sultan Jubran Sultan al-Qahtani, known as Zubayr Al-Rimi (1974–2003), a militant in al-Qaeda's Saudi wing
• Talal Al Qahtani (born 1987), Qatari footballer
• Yasser Al-Qahtani, Saudi Arabian footballer

• Muhammad Jafar Jamal al-Kahtani, citizen of Saudi Arabia who was a captive held in extrajudicial detention in the United States' Bagram Theater Internment Facility

• al-Qahtani (disambiguation)
• Al-Qahtaniyah (disambiguation)
• Bani Qahtan Castle, castle in the Syrian Coastal Mountains near Lattakia