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|Chamaraja Wodeyar IX|
|Maharaja of Mysore|
|21st Maharaja of Mysore|
|Coronation||27 September 1776, Seringapatam|
|Predecessor||Chamaraja Wodeyar VIII (older brother)|
|Successor||Krishnaraja Wodeyar III (son)|
|Born||28 February 1774|
|Died||17 April 1796|
Royal Palace, Seringapatam
|Issue||Krishnaraja Wodeyar III|
|Father||Krishnaraja Wadiyar II|
Chamaraja Wodeyar IX was a son of Chikka Devaraj Urs of Arikuthara of the Karugahalli family. After the death of his older brother and predecessor Chamaraja Wodeyar VIII, he was adopted by Maharani Lakshmi Ammani Devi, widow of Maharaja Krishnaraja Wodeyar II. He reigned under the controls of Sarvadhikari Hyder Ali and his son Tipu Sultan, like his three immediate predecessors did: Maharajas Krishanaraja Wodeyar II, Nanjaraja Wodeyar, and Chamaraja Wodeyar VIII.
The maharaja died of smallpox at the Royal Palace of Seringapatam on 17 April 1796. Tipu Sultan deposed the Wodeyar dynasty and became sole ruler of Mysore Sultanate for the next three years, until his death in 1799.