Tuoba Yihuai (Chinese: 拓跋翳槐; pinyin: Tuòbá Yīhuái; died 338) ruled as prince of the Tuoba Dai 329–335 and 337–338. He was the son of Tuoba Yulü and the nephew of Tuoba Hena. When Tuoba Hena was in his first reign as the Prince of Dai, Tuoba Yihuai lived with his maternal uncle's father Helan Aitou (賀蘭藹頭) of the Helan tribe.