Marquis Xiao of Jin (晉孝侯 Jìn Xiào Hóu), ancestral name Ji (姬), given name Ping (平), was the thirteenth ruler of the state of Jin. He was also the third ruler of Jin in the Spring and Autumn period. He ruled for sixteen years.

In 739 BC, the 7th year of the reign of Marquis Zhao of Jin, a Jin official named Panfu (潘父) murdered Marquis Zhao of Jin and welcomed Uncle Huan of Quwo to ascend the throne of Jin. He accepted Panfu's welcome and entered Jin. When he entered, the Jin people brought troops to stop him from entering. He lost and receded back to Quwo. Then, the Jin people asked the son of Marquis Zhao of Jin, Ping, to ascend the throne and he became the next ruler of Jin: Marquis Xiao of Jin. After he ascended the throne, he killed Panfu in revenge for his father.

In 724 BC, the 15th year of his reign, the son of Uncle Huan of Quwo, Count Zhuang of Quwo, murdered Marquis Xiao of Jin while in the capital of Jin, Yi (翼). Then, Jin troops attacked Count Zhuang of Quwo so he retreated back to Quwo. The Jin people asked the son of Marquis Xiao of Jin, Xi, to become the next ruler of Jin and he became Marquis E of Jin.

晉孝侯（？ - 前724年），姬姓，名平，是春秋時期諸侯國晉國的國君，晉昭侯之子，晉國第十三任君主，在位15年，於前724年為曲沃莊伯所殺。

昭侯七年（前739年），曲沃莊伯勾結晉大臣潘父，弒殺了昭侯，曲沃桓叔欲入晉自立，但被晉人發兵逐回曲沃。晉人共立公子平為君，是為孝侯，誅殺潘父。

孝侯十五年（前724年），曲沃桓叔之子莊伯在國都翼城弒殺了孝侯，晉人攻曲沃莊伯，莊伯退回曲沃。晉人立孝侯之弟公子卻為君，是為鄂侯。