Herwer was an Ancient Egyptian town in the 16th nome (Oryx nome) in Upper Egypt. It is mentioned in several ancient inscriptions dating from the Old, Middle and New Kingdom. The main deities of the place were Khnum and Heqet, both several times called lord or lady of Herwer. Perhaps in the Middle Kingdom, the place became capital of the 16th Upper Egyptian nome. The local governor Amenemhat of that nome was indeed overseer of the priests of Khnum of Herwer. The place is often mentioned in the tombs of Beni Hasan.
The localisation of Herwer remains problematic, perhaps Herwer is identical with modern Hur.
References
Herwer Wikipedia(Text) CC BY-SA