Oulad Gnaou is a small town and rural commune in Béni Mellal Province of the Tadla-Azilal region of Morocco. At the time of the 2004 census, the commune had a total population of 11256 people living in 1961 households. The town is located west by road from Beni Mellal. Agriculture forms the backbone of the local economy; in 1950-51 experiment were conducted into irrigating wheat crops in the commune. The growth of irrigation in the area was facilitated by the famine of 1945.The land in the commune is semi-arid.