The current study was planned to assess the “Effect of Turmeric Powder and Vitamin C Supplementation on Performance and Carcass Traits of Japanese Quail (Coturnix japonica)”. One hundred 60 day-old Japanese quail chicks were used in a completely randomized design with 4 treatments and 4 replications, each consisting of 10 Japanese quail chicks. They were reared under a cage system for six weeks with identical standard management practices. The treatments included basal diet T1 (Control) feeding without Turmeric powder and Vitamin C, T2 (T1 +Turmeric powder @ 0.5%), T3 (T1 +Vitamin C 300mg/kg) and T4 (T1 +Turmeric Powder @ 0.5% +Vitamin C 300mg/kg). In this experiment, body weight, body weight gain, feed intake and FCR were measured to assess the effects of different treatments in Japanese quail. The overall feed intake was significantly highest in group T4 (467.37±10.76?g), followed by T2 (446.39±0.22?g) and T3 (444.46±0.06?g), while the lowest feed intake was recorded in the group T1 (440.25±0.45?g). The difference between T2 and T4 was found statistically non-significant. The overall feed conversion ratio (FCR) was significantly lowest in group T3 (2.24±0.003?g) and highest in the control group T1 (2.34±0.003?g). At the 6th week of age, body weight was significantly highest in group T4 (210.70±0.15?g), followed by T2 (207.59±0.08?g) and T3 (202.61±0.10?g), while the lowest body weight was recorded in the control group T1 (196.55±0.12?g). The overall body weight gain was significantly highest in group T4 (201.94±0.22?g), followed by T2 (198.88±0.21?g) and T3 (193.97±0.12?g), with the lowest gain recorded in the control group T1 (187.89±0.02?g). However, the difference in body weight gain between T2 and T4 was statistically non-significant. Turmeric powder and Vitamin C supplementation impacted feed intake, FCR and growth performance in Japanese quail (Coturnix japonica). The findings suggest the potential of these supplements to enhance the overall performance of poultry.