Tanxu (simplified Chinese: 倓虚; traditional Chinese: 倓虛; pinyin: Tánxū; July 3, 1875 – August 11, 1963) was a Chinese Buddhist monk and a 44th generation lineage holder of the Tiantai school, taught by Master Dixian. Tanxu is known as one of the most influential monks to have had lived during the late Qing and Republican periods of Chinese history, spreading and invigorating the practice of Buddhism throughout the region. He was also famous for constructing several Buddhist temples and institutes in Northern China in the early 20th century. He also achieved renown through his buildings, due to his integration of European industrial construction techniques and traditional Chinese methods.