Dagi was an Ancient Egyptian vizier of the Eleventh Dynasty. He was in office under Mentuhotep II in the Eleventh Dynasty, around 2000 BC. The vizier was the most important official at Egyptian royal court.
Dagi is mainly known from his tomb in Western Thebes (TT103) which was once decorated with paintings and reliefs. From the reliefs only small fragments were found while there are some substantial remains of the paintings. In the tomb decoration he appears with the titles of a vizier. In the tomb was also found his decorated sarcophagus (now in the Egyptian Museum of Cairo) on which he appears with the title overseer of the gateway. This was his office most likely before he became vizier. His name and these titles also appear on reliefs found in the mortuary temple of Mentuhotep II at Deir el-Bahari. These fragments provide the evidence that he was in office under this king.