A study was conducted on 16 commercial free range chickens (8 malesand 8 females) sourced from Alor Setar, Kedah in order to determine the prevalence of ecto and endoparasites. Results showed that there were 12 different species of ectoand endoparasites from these chickens. Four (4) species of ectoparasites which consist of three lice and a tick have been discovered. The highest prevalence of ectoparasite was Menopon gallinae (93.8%). The other ectoparasites were Menacanthus pallidulus (81.3%), Haemaphysalis sp. (37.5%) and Lipeurus caponis (18.8%). On the other hand, eight species of endoparasites which consist of four nematodes and four cestodes were discovered. Rallietina echinobothrida showed the highest prevalence of endoparasite (100%) followed by Heterakis gallinarum (93.8%), Acuaria spiralis (87.5%), Ascaria galli (81.3%), Rallietina tetragona(43.8%), Gongylonema ingluvicola (37.5%), Hymenolepis carioca (12.5%)and Hymenolepis cantiana (12.5%). Endoparasites infestation was recorded highest on male chicken (52.6%) compared to female (47.4%). However, there was no statistically significant difference betweenthe number of endoparasites and both sexes; t (14) = 0.817, p>0.05.