| Atsiz اتسز | |||||
|---|---|---|---|---|---|
 Coin minted under Atsiz, citing his Seljuk suzerain Ahmad Sanjar | |||||
| Khwarazmshah | |||||
| Reign | 1127 – 30 July 1156 | ||||
| Predecessor | Muhammad I | ||||
| Successor | Il-Arslan | ||||
| Born | Konye-Urgench 1098 | ||||
| Died | 30 July 1156 (aged 58) | ||||
| Issue | Il-Arslan Atliq Hitan-Khan Suleiman-Shah | ||||
| |||||
| House | House of Anushtegin | ||||
| Father | Muhammad I | ||||
| Mother | Kipchak princess (?) | ||||
| Religion | Sunni Islam | ||||
Ala al-Din wa-l-Dawla Abu'l-Muzaffar Atsiz ibn Muhammad ibn Anushtegin (Persian: علاءالدين و الدوله ابوالمظفر اتسز بن محمد بن انوشتگین; 1098 – 1156), better known as Atsiz (اتسز) was the second Khwarazmshah from 1127 to 1156. He was the son and successor of Muhammad I.