The response of tilapia hybrid (Oreochromis niloticus × Oreochromis aureus) to dietary herbs plants supplement with respect to growth performance and feed utilization through feeding experiments was investigated. Seven tilapia hybrid fingerlings treatments (45 fingerlings each, as average initial body weight 3.03±0.01g) were used at period 90 days in closed system. Seven dietary approximately iso-nitrogenous (30.63±0.33 % crude protein) and iso-caloric (4757 ± 39 kcal GE/ kg diet) were formulated, fed to three aquaria for each treatment (diet). Medicinal herbs additives of three levels from marjoram (Majorana hortensis) or sage (Salvia officinalis L.) being 150, 300 and 600 mg/kg diet, respectively. The obtained results revealed that fish groups fed the low levels (150 mg/ Kg) of either marjoram or sage showed high response in final body weight, total weight gain, SGR (%/day) and RGR (%), followed  by the moderate levels (300 mg/ Kg) and finally the high levels of  the additives (600 mg/ Kg) compared to fish fed the control diet. Also, it is noted that herbal plant improve in feed utilization parameters of tilapia hybrid fingerlings, but it was declined when the level of herbal plant increased.  Fish groups fed diets containing sage reflected high values of fat productive values (%) in the low level of additives and declined with increasing the level of sage in the diet. On the other hand, fish groups fed marjoram showed that declined FPV (%) with increasing the level of the marjoram used. Therefore, it could be concluded that tilapia hybrid (Oreochromis niloticus × Oreochromis aureus) fingerlings achieve increasing by 150 and 300mg/ kg dietary addition of marjoram or sage herbs, respectively.