The Temple of Kalabsha (also Temple of Mandulis) is a Ancient Egyptian temple that was originally located at Bab al-Kalabsha (Gate of Kalabsha), approximately 50 kilometers south of Aswan. The temple was situated on the west bank of the Nile River in Nubia, and was originally built around 30 BC during the early Roman era. While the temple was constructed in Augustus's reign, it was never finished.

The temple was a tribute to Mandulis (Merul), a Lower Nubian sun god. It was constructed over an earlier sanctuary of Amenhotep II. The temple is 76 meters long and 22 meters wide in dimension. While the structure dates to the Roman period, it features many fine reliefs such as a fine carving of Horus emerging from reeds, on the inner curtain wall of the temple. From Kalabsha's sanctuary chambers, a staircase leads up to the roof of the temple where one can see a splendid view of the temple itself and the sacred lake. Several historical records were inscribed on the temple walls of Kalabsha such as a long inscription carved by the Roman Governor Aurelius Besarion in AD 250, forbidding pigs in the templ, as well as an inscription of the Nubian king Silko, carved during the 5th century and recording his victory over the Blemmves and a picture of him dressed as a Roman soldier on horseback. Silko was the Christian king of the Nubian kingdom of Nobatia.