To determine the nutritive value of Narbon bean (Vicia narbonensis) seed (VNS) in practical diets of Oreochromis niloticus fingerlings at five levels (0, 100, 200, 300 and 400 g VNS / kg) treatments had three replicates, ten fish per replicate. Inclusion of VNS above 200 g / kg showed significantly reduced feed intake, growth performance and lower lipid content. It is concluded that narbon bean could be included up to 200 g / kg only into diet of tilapia.