Cheng Wu (born 201) was a politician of Cao Wei during the Three Kingdoms period of Chinese history. He was the son of Cheng Yu. Cheng Wu served under the commander Xiahou Mao once to resist the invading army of Shu Han. He proposed to Xiahou a strategy which lured the enemy general Zhao Yun into a trap, but Zhao managed to fight his way out. Cheng also advised Xiahou on capturing Zhao in an ambush. Cheng Wu became a prominent figure in Cao Wei in the later years.