The State of Jin is a major state during the middle part of the Zhou Dynasty, based in southern Shanxi Province near the center of what was then China.

Although it grows in power during the Spring and Autumn Period, its aristocratic structure sees it break apart when the duke loes power to his nobles.

In 453 BCE, Jin is split into three successor states: Han, Zhao and Wei.

The Partition of Jin marks the end of the Spring and Autumn Period and the beginning of the Warring States Period.