Wo Jia () or Qiang Jia (), personal name Zi Yu, was a Shang dynasty King of China.
In the "Records of the Grand Historian" he was listed by Sima Qian as the fifteenth Shang king, succeeding his brother Zu Xin (). He was enthroned in the year of Renyan () with Bi () as his capital. He ruled for about 25 years (although other sources claim 20 years) before his death. He was given the posthumous name Wo Jia and was succeeded by his nephew Zu Ding ().
Oracle script inscriptions on bones unearthed at Yinxu alternatively record that he was the fourteenth Shang king, given the posthumous name Qiang Jia ().
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