In Chinese mythology, Lei Gong (Chinese: 雷公; pinyin: léi gōng; Wade–Giles: lei2 kung1; literally: "Lord of Thunder") or Lei Shen (Chinese: 雷神; pinyin: léi shén; literally: "God of Thunder"), is the Chinese traditional religious and Taoist deity. In Taoism, when so ordered by heaven, Lei Gong punishes both earthly mortals guilty of secret crimes and evil spirits who have used their knowledge of Taoism to harm human beings. He carries a drum and mallet to produce thunder, and a chisel to punish evildoers. Lei Gong rides a chariot driven by a young boy named A Xiang.
Lei Gong is depicted as a fearsome creature with claws, bat wings, and a blue face with a bird's beak who wears only a loincloth. Temples dedicated to him are rare, but some people honor him in the hope that he will take revenge on their personal enemies.
Since Lei Gong's power is thunder, he has assistants capable of producing other types of heavenly phenomena. Dian Mu (電母) ("Mother of Lightning"), also known as Tian Mu or Lei Zi, is Lei Kung's wife and the Goddess of Lightning, who is said to have used flashing mirrors to send bolts of lightning across the sky. Other companions are Yun Tong ("Cloud Youth"), who whips up clouds, and Yu Zi ("Rain Master") who causes downpours by dipping his sword into a pot. Roaring winds rush forth from a type of goatskin bag manipulated by Feng Bo ("Earl of Wind"), who was later transformed into Feng Po Po ("Lady Wind").