This study was performed to investigate the effect of dietary supplementation with fenugreek seeds by-produced meal (FSM) on growth performance, feed utilization, body composition and some physiological traits of Common carp (Cyprinus carpio) with an average 10.6 ± 0.15g weights and 8.78± 0.14cm length. A 12-week feeding trial was conducted in 12 aquariums (75 – 60 – 45cm in diameters). Four experimental diets were formulated to containing 0% (Commercial diet), 10, 20 and 30% FSMby-produced. The results revealed that fenugreek seeds meal supplementation significantly enhanced the fish growth over the control group. Also, condition factor and survival rate were significantly increased with increasing FSM percentage in the diets up to 20%. Feed conversion ratio was significantly improved with increasing FSM up to 20% inclusion level. Fish feeding diets containing 20% FSM had significant increase in PER, whereas there was no significant difference in feed intake. Body protein and dry matter content was significantly increased with increasing FSM percentage in the diets until 20%, while the higher value of fat content was recorded with diet contained 10% fenugreek seeds. The higher significant plasma protein and lysozyme andlower plasma glucosewas obtained in diet containing 20%. FSM. Fish fed control diet gave the higher value of plasma glucose and the lower value lysozyme, while Fish fed 30 % FSM provided the lower value plasma protein. It could be concluded that the dietary addition of 20% of fenugreekseeds by-producedmealenhanced the growth performance of Common carp.