A study was conducted to evaluate the effect of genotype. sex. age and generation on carcass traits of four varieties of guinea fowl. Three hundreds and twenty birds were distributed into four varieties White. Lavender, Chocolate and Pearl guinea fowl were evaluated at 12. 16. 20 and 24 weeks of age. Percentages of dressing were 68.2, 69.7. 70.1 and 71.0 % at 12. 16. 20 and 24 weeks of ages respectively. No significant differences between 16 and 20 weeks of age were found for the meat yield. the giblets. bone. dressing. heart. neck and leg percentages. Male birds showed significantly meat yield. dressing and heart percentages (P<0.05). Opposite trend was observed with abdominal fat. feather and giblets percentages. Live body weight, meat yield and dressing percentages of birds in second generation were slightly heavy. They were 832.2 vs. 1145.1 g. 53.1 vs. 58.3 % and 68.3 vs. 71.1% in the first and second generation. respectively. Phenotypic correlations were obtained among carcass traits. age and organ weights as well as linear regression coefficient for carcass weight on organ weights. The linear regression coefficients were positive and significant for all organ traits except for spleen weight. Correlations between the organ weights and body weight were positive. The present study indicates that improved meat yield or the dressing percentages may be achieved by selection for quick growth.