The Khaju Bridge is one of the historical bridges in Isfahan, Iran. Serving as both a bridge and a weir, it links the Khaju quarter on the north bank with the Zoroastrian quarter across the Zayanderud. It also served a primary function as a building and a place for public meetings.It has been described as the city's finest bridge.
The Khaju Bridge was built around 1650, under the reign of Abbas II, the seventh Safavid king (shah) of Iran, on the foundations of an older bridge. The existing inscriptions suggest that the bridge was repaired in 1873. There is a pavilion located in the center of the structure, inside which Abbas II would have once sat, admiring the view.Today, remnants of a stone seat is all that is left of the king's chair.

In words of Arthur Pope and Jean Chardin, Khaju is "the culminating monument of Persian bridge architecture and one of the most interesting bridges extant ... where the whole has rhythm and dignity and combines in the happiest consistency, utility, beauty, and recreation.

The bridge has 23 arches, and is 133 meters long and 12 meters wide. It was originally decorated with tilework and paintings, and served as a teahouse. The passway of the bridge is made of bricks and stones with 21 larger and 26 smaller inlet and outlet channels, and is 7.5 meters wide. The pieces of stone used in the bridge are over 2 meters long, and the distance between every channel and the ceiling base is 21 meters.