Mahmud ibn Hussayn ibn Muhammed al-Kashgari (Arabic: محمود بن الحسين بن محمد الكاشغري‎ - Maḥmūd ibnu 'l-Ḥussayn ibn Muḥammad al-Kāšġarī; Turkish: Mahmûd bin Hüseyin bin Muhammed El Kaşgari, Kaşgarlı Mahmûd; Uyghur: مەھمۇد قەشقىرى‎) was an 11th-century Turkic scholar and lexicographer of Turkic languages from Kashgar.His father, Hussayn, was the mayor of Barsgan, a town in eastern-southern part of Issyk Kul lake (nowadays village of Barskoon in Northern Kyrgyzstan's Issyk Kul region) and related to the Qara-Khanid ruling dynasty.