Takht-i-Bahi (Urdu: تخت باھی; Throne of the water spring), also commonly mispronounced as Takht-i-Bhai ("Brother's throne"), is a Parthian archaeological site of an ancient monastery in Mardan, Khyber-Pakhtunkhwa, Pakistan. The monastery was first a Zoroastrian complex which, after the later arrival of Buddhism, was then converted into a Buddhist monastic complex.