The Tomb of Wais-e Nāzār (Persian: آرامگاه ویس نازار) is a historical mausoleum in Kermanshah, Iran. It is located on the top of a hill, 35 kilometres from the city of Ravansar. The deceased person entombed in the mausoleum is traditionally attributed to be Owais al-Qarani, one of the Tabi'een who died in the Battle of Siffin. It is number 1054 on the list of national monuments of Iran.

The mausoleum was first constructed during the Seljuk period. In the 21st century, the mausoleum was completely refurbished and renovated. A Hussainiyah was attached to the tomb, and other facilities like a bazaar and a skydiving center were built in the areas adjacent to the tomb. In 1954, the mausoleum was designated as a national heritage monument.

Currently, the tomb is majorly visited by the Kurds of Iran, who are usually Sunnis.

The geographer, Hamdallah Mustawfi, writes that the grave of Owais al-Qarani was located near Kermanshah after he died in the Battle of Siffin. But due to Owais also having a tomb attributed to him in Raqqa, Syria within the grounds of the now-destroyed Uwais al-Qarni Mosque, the identity of the entombed here is contested. An alternative theory suggests that the mausoleum was built for one of the mystics of the Uwaisi Sufi order, who had a very similar name.

• List of mausoleums in Iran