With the aim of using less expensive animal protein sources in fish feed, a growth study of tilapia Oreochromis niloticus was carried out following the incorporation of insect larvae meal into its feed. Three diets with incorporation rates of 15% (R15), 20% (R20) and 25% (R25) of Rhynchophorus phoenicis weevil larvae meal were prepared using a feed based on agricultural by-products as a control diet (AT). The basic composition of the diets was: soybean meal, cottonseed meal, rice bran, wheat bran, vegetable oil and premix. 480 fish with an average weight of 14 ± 0.1 mg were distributed in eight aquaria at a density of 60 larvae per aquarium in duplicate. They were fed to satiation for the first month, then at 10% of their total live weight for the second month. After 60 days of rearing, the best feed conversion (0.22 ± 0.03) and final weight (5.06 ± 0.85g) were obtained with the R20 diet, followed by the R15 diet (0.32 ± 0.11; 3.86 ± 1.5 g) and R25 (0.36 ± 0.07; 3.15 ± 0.69 g). The lowest daily growth (0.06 ± 0.01 g/day) and highest conversion index (0.41 ± 0.08) were recorded with the control. Survival rates were 91.86% or higher. At the end of this study, weevil larvae meal could be used as a protein source for tilapia feed.