Tiefo Temple in Linfen, Buddhist temple in Linfen, China.

Tiefo Temple, also called Dayun Temple, faces east on a 5,363-square-metre site in southwestern Linfen. Its six-storey brick pagoda, built in 1715, rises 30 metres: five square storeys and an octagonal sixth topped by a copper-bronze finial. The hollow ground floor enshrines a 6.8-metre-tall Tang cast-iron Buddha head, 3.8 metres wide.

Founded in 632 during the Tang Zhenguan era, the temple was destroyed by the 1695 Linfen earthquake. Chen Guoxin led fundraising to rebuild the pagoda in 1715, but it was not completed until 1727 under prefect Fan Qianzhuo. From 1921 it housed the Shanxi Provincial Sixth Women's Normal School, and in 1937 Zhou Enlai spoke here.

Locals call the temple Tiefo Si, the Iron Buddha Temple, after the iron head inside the pagoda. A saying pairs it with the Drum Tower: "Pingyang has a golden-roofed pagoda, only two feet eight from the sky." Legend says the pagoda's round top was once pure gold, swapped one night for shining copper that never rusts.

The temple faces east and is entered through the five-bay gate hall; the compound runs west through the former Heavenly King Hall to the pagoda courtyard and the two-storey sutra library. The iron Buddha head sits in the hollow ground floor of the pagoda, and the upper five storeys cannot be climbed. The site now serves as the Linfen Tiefo Temple Museum.

The iron head is hollow and was cast from over 300 separate iron pieces, each about 50 cm across and 6–10 cm thick. A square hole at the back once held sutras, which burned in a lightning-caused fire in the summer of 1946. Scholars estimate its weight at around 10 tonnes, some say over 15.