Guan Ping (關平, ? – 237) was the first son of the 3rd century Chinese military general Guan Yu and elder brother of Guan Xing. He had also served a military post in the Kingdom of Shu during the period known as Three Kingdoms. Little about him could be found in historical records (not even his style name was documented) except that he was captured along with his father in the kingdom of Shu. In the 14th century historical novel Romance of the Three Kingdoms by Luo Guanzhong, Guan Ping was said to have been adopted by Guan Yu when he was seventeen (Chapter 28), as his true father requested to have him follow and assist the renowned general. Without a son then, Guan Yu took Guan Ping as his own.