Xiao Jia, personal name Zi Gao (子高), was a Shang dynasty King of China.

In the Records of the Grand Historian he was listed by Sima Qian as the seventh Shang king, succeeding his brother Tai Geng (太庚). He was enthroned in the year of Dingsi (丁巳) with Bo (亳) as his capital. He ruled for 17 years, was given the posthumous name Xiao Jia and was succeeded by brother Yong Ji (雍己).

Oracle script inscriptions on bones unearthed at Yinxu alternatively record that he was the sixth Shang king succeeding his brother Da Geng (大庚), given the posthumous name Xiao Jia (小甲) and succeeded by his nephew Da Wu (大戊).

小甲（？ - ？），子姓，名高，是商朝第八任君王。《史記·殷本紀》說他是太庚之子，可是《史記·三代世表》說他是太庚之弟，並說「殷道衰，諸侯或不至」（殷本紀把這兩句置于雍己時期）。小甲在位時，商代以亳為都，他去世後，弟太戊繼立。

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