The Name Hassi Messaoud means "the well of Messaoud" in Arabic. Messaoud Rouabeh, son of ElHadj Rabah, son of Amira, was from the tribes of Chaanba (Arabic tribes living near the region of Ghardaia and Ouargla) and exactly from the tribe named "Oulad Belkacem" (sons of Belkacem). He was born in 1875 near Ouargla. He dug other water wells in the region; the last one before that in Hassi Messaoud was the well of Doubba, and since that well was crowded by Bedouin using it, he decided to travel elsewhere to find another water point. When traveling south-east from Ouargla, he found some green areas in the place named now "Bou Amamma". He decided to dig a well there and he found a liquid with a bizarre color and odor, The information didn't manage to reach the French colonies at that time. From that time i.e. 1917, they named the region as "Hassi Messaoud".