Twenty (20) growing west African dwarf goats were confined and fed concentrate diets containing 0%(T1), 10%(T2), 15%(T3) and 20%(T4) cashew nut shell at 100 g/goat/day to determine the effect of cashew nut shell on organ weights of the goats, the experiment lasted for 100days after an adjustment period of 14 days, the goats were served water ad Libitum. Fresh bamboo leaves were fed at 300 g/goat/day 2 hours before the concentrate. At the end of the feeding trial three (3) goats from each treatment were slaughtered, dressed and the heart, liver, kidney, lungs and spleen were cut off, weighed and converted to percentage of slaughter weight. the experimental design was a completely randomized design data obtained were subjected to one-way analysis of variance (ANOVA) and significant treatment means were separated using Least Significant Difference (LSD) option of SPSS version 16 of 2006 edition. Samples of browse species and the supplement diets were analyzed for their proximate composition using standard procedure (AOAC, 1995). Daily supplement intake and total daily dry matter intake values ranged from 4461g (T4)-91.54 g (T1) and 216.75 (T4)-258.99 g (T2) and were significantly p> 0.05 different. Daily forage intake values ranged from 165.07 (T1)-176.10 (T3) were not significantly (p> 0.05) different. All the organs weights determined did not show significant difference. All the organs weights were within normal range for growing west African dwarf goats. The weights for the heart ranged from 0.53-0.62 while those for lungs ranged from 1.31-1.40 all the values for the organs determined did not follow any definite trend. It was therefore concluded that cashew nut shell in concentrate diets for growing west African dwarf goats up to20% levels of inclusion was safe for the goats. Further research using higher levels of cashew nut shell as well as other classes of ruminant such as cattle and sheep was recommended.