Family name القحطاني (القحطاني 
, Qahtani 
, Al-Qahtani ) , across the world, is a widespread cognomen. The last name القحطاني is habitual in Western Asia, particularly Saudi Arabia, where it is a widespread surname, Qatar, where it is quite a common surname, and Kuwait (explore the name in all countries). In absolute terms, it is commonest in Saudi Arabia, Yemen, and Egypt. Very seldom, القحطاني is the forename as well as the last name.
| محمد بن فهاد القحطاني Saudi Arabian poet, SA (b. 1868) |
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عبد الكريم أحمد مقبل القحطاني SA (b. 1940) |
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| إيمان القحطاني Saudi Arabian journalist, SA (b. 1901) |
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محمد القحطاني Saudi human rights activist, SA (b. 1960) |
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| سعيد بن محي بن أحمد آل أحمد القحطاني SA (b. 1909) |
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محمد جعفر جمال القحطاني Saudi Arabian held at Bagram, SA (b. 1973) |
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سلطان جبران سلطان القحطاني Saudi Arabian terrorist (1974-2003), SA (b. 1974) |
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سعود القحطاني Saudi Arabian consultant and former royal court advisor, SA (b. 1978) |
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محمد مانع القحطاني Saudi Arabian Guantanamo detainee, SA (b. 1979) |
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ياسر القحطاني Saudi Arabian footballer, SA (b. 1982) |
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عبد الرحمن القحطاني Saudi Arabian footballer, SA (b. 1983) |
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| محمد عبد الله القحطاني SA (b. 1935) |
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| عبد اللطيف القحطاني Saudi Arabian Olympic javelin thrower (born 1946), SA (b. 1946) |
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| سعيد بن علي بن وهف القحطاني Saudi Arabian scholar and writer, SA (b. 1952) |
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| قحطان القحطاني actor, BH (b. 1954) |
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