King Wucheng of Yan (Chinese: 燕武成王; died 258 BC), personal name unknown, was a king of the Yan state.
[1] In 272 BC, King Wucheng's father, King Hui, was murdered by the powerful chancellor Gongsun Cao (公孫操).
In the same year, Yan was attacked by a joint expedition of the forces of Han, Wei and Chu states.
[3] In 265 BC, Yan lost a battle against the troops of the Qi state led by Tian Dan.
[4] King Wucheng died in 258 BC, and was succeeded by his son, King Xiao.