Imāmzādeh Ja‘far (Persian: امامزاده جعفر بروجرد) is a historical mausoleum in Borujerd, western Iran.

Built in the 11th century AD, Imamzadeh Jafar is one of the few examples of the architecture of the Seljuq and Ilkhanid eras in Iran.

A very similar mausoleum is the Tomb of Daniel in Susa, south western Iran.

The March 2006 Borujerd earthquake caused extensive damage to the tomb.

The mud-brick parts of the building were damaged and a hole appeared on the dome.