Du'ao (堵敖 or 杜敖), also known as Zhuang'ao (庄敖), personal name Xiong Jian, was a king of the Chu state, reigning from 676 BC to 672 BC.

Du'ao succeeded his father, King Wen, to the Chu throne. In 672 BC, he attempted to kill his younger brother, Xiong Yun (King Cheng), who escaped to the Sui state. Xiong Yun attacked and killed Du'ao with the help of Sui, and ascended the throne of Chu thereafter.

堵敖（？ - 前672年），芈姓，熊氏，名艰，一作囏，《左传·庄公十四年》和《楚辞·天问》作堵敖，《史记·楚世家》作杜敖，《史记》另有版本中「杜敖」作「壮敖」或「庄敖」，春秋时期楚国君主。

堵敖原名熊艰，楚文王之子。《史记·楚世家》谓堵敖即「囏」（「囏」音、用法同艰）。熊艰在位，继续富国强兵，逐鹿中原。楚庄敖五年（前672年）熊艰欲杀其弟恽。恽奔亡随国，借随人之助，杀艰自立，是为楚成王。

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