The Temple of Hera Lacinia, or Juno Lacinia, otherwise known as Temple D, is a Greek temple in the Valle dei Templi, a section of the ancient city of Agrigentum in Sicily.
It was built in the middle of the fifth century BC, about the year 450 BC, and in period and in style belongs to the Archaic Doric period. Signs of a fire which followed the Siege of Akragas of 406 BC have been detected, and long after that the temple was restored at the time of the Roman province of Sicily, with the original terracotta roof being replaced by one of marble, with a more steeply inclined slope on the eastern side. The temple was originally dedicated to the Greek god Hera, Roman Juno. If still in use by the 4th-and 5th century, it would have been closed during the persecution of pagans in the late Roman Empire.