This study was carried out to determine and compare the phytochemical content in peel and seed of kaffir lime (C. histrix), calamondin (C. microcarpa) extracts. The extracts from peel and seeds of samples were prepared and the phytochemicals screening was done to determine the presence of phenolic, flavanoid, tannin and saponin content. All the peel and seed of kaffir lime (C. histrix), calamondin (C. microcarpa) and key lime (C. aurantifolia) indicate the presence of phenolic, flavanoid, tannin and saponin. The phytochemical contents that were analysed are total phenolic content, total flavanoid content, total tannin content and total saponin content. In the total phenolic content, it was found the that highest in the peel of key lime with 52.28 ± 6.02 mg GAE/100g kaffir lime seeds showed the highest value with, 29.55 ± 2.28 mg GAE/100g. In total flavanoid content, peel of kaffir lime was found to be highest with 30.13 ± 0.54 mg RE/100g and 12.93 ± 0.13 mg RE/ 100g for the seeds of kaffir lime. The peels of calamondin indicates the highest value of tannin content with 122.33 ± 1.18 mg TAE/100g while the seed of kaffir lime showed the highest value with 127.58 ± 1.18 mg TAE/100g. The highest total of saponin content was found in the peels of kaffir lime with, 93.31 ± 0.92 mg/100g, whereas the highest amount of saponin content was found in the seed from key lime with 65.00 ± 0.93 mg/100g. The difference in results may be due to the different species being compared and the different chemical composition that contain in the lime.