Seven species of ectoparasites (Three Mites, two Sucking Lice, one Chewing Lice and one Dipteran) were recovered from the Brown Rat Rattus norvegicus (n = 10) and the Roof Rat Rattus rattus (n = 15 at the wet market of Jalan Othman, Section 3, Petaling Jaya, Selangor, Malaysia. The species collected in Brown Rat included Echinolaelaps echidninus, Myobia sp. and Hoplopleura acanthopus while those recovered from parasitized House Rat were Echinolaelaps echidninus, Dermanyssus gallinae, Myobia sp., Hoplopleura acanthopus, Goniocotes gallinae and one unidentified Anopluran and Dipteran species. Result of the investigation indicated that there was variation in the infestation and distribution of ectoparasite in both species. Echinolaelaps echidninus was the dominant ectoparasite species found on all rats captured (100% infested). The presence of Dermanyssus gallinae and Goniocotes gallinae was peculiar as these were normally found on avian species. As trapping was conducted near a market area, infestation by such ectoparasites could have originated from chickens as the original hosts. The potential of each ectoparasite in the transmission of zoonoses diseases was discussed.