Atasagun is a Turkic word referring to the chief physician. The word is used in Mahmud al-Kashgari's Dīwān Lughāt al-Turk with this meaning. It began to be used as a surname when Turkification attempts started shortly after the foundation of the Republic of Turkey.
Notable people with the surname are as follows:
İbrahim Şevki Atasagun (1899–1984), Turkish soldier and statesman Şenkal Atasagun (born 1941), Turkish civil servant
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