Tianzhu Mountain or Mount Tianzhu () is a mountain in Anhui, China. Tianzhu Mountain is also called Mount Wan (), from which the provincial abbreviation for Anhui (Wan) derives. Ancient names of the mountain include Mount Huo 霍山, Mount Heng 衡山 (not to be confused with Mount Heng in Hunan Province), and Taiyue 太岳.