The
Bahr Yussef (; "the waterway of Joseph") is a canal which connects the
Nile River with
Fayyum in
Egypt. In ancient times, it was known as
Mer-Wer (the Great Canal). This project was built at the time of
Amenemhat III, who was also known as Moeris (similar to
Mer-Wer). The Arabic name refers to the prophet
Yusuf, the Quranic counterpart of the Biblical
Joseph.