Meaning: Guihai is a compound surname with multiple origins. One theory suggests it derives from the ancient Guihaiguo, a small state during the Spring and Autumn period, which was annexed by the state of Qi. The descendants of Guihaiguo adopted the state name as their surname. Another theory posits that the surname originates from the ancient Guihaishi tribe, whose members took the tribal name as their surname. Additionally, it is believed that the surname may have arisen from the ancient noble title Guihaijun. The Guihai surname is historically rare and even more so in modern times.
Guihai is an ancient, rare Chinese compound surname with diverse origins, possibly stemming from a small state or tribal name. It is now exceedingly uncommon.