King Hui of Qi was a ruler of the State of Qi during the Warring States period in ancient China. He reigned from 378 to 343 BCE and is known for his efforts to strengthen the state through military reforms and alliances. His leadership contributed to Qi's prominence among the other states during this tumultuous time. Under King Hui's rule, the state experienced economic growth and cultural development. He is often associated with the philosopher Guan Zhong, who served as his chief minister and implemented various policies that improved agriculture and trade. King Hui's reign is remembered for its advancements in governance and statecraft.