Background and Aim:Ectoparasitic entomoses cause serious economic losses to small-scale farmers. Parasites have both direct and indirect impacts on hosts. Domestic goats are a common target of infestation with ectoparasitic insects. This study aimed to identify the species of ectoparasitic insects in domestic goats in Bulgaria.Materials and Methods:The study was performed in 34 farms from 29 settlements in 16 regions of Bulgaria. A total of 4599 goats from eight breeds, naturally infested with ectoparasitic insects were included in the study. The goats were inspected with a magnifying glass for the presence of skin changes (alopecia, dandruff, crusts, and nodules), eggs and adult ectoparasites. The detected insects were collected individually with tweezers and preserved in containers with 70% ethanol. Over the study period, 5,651 insects were collected; their species, sex, and developmental stage were identified by their morphological features and biometric measurements.Results:Six species from 5 genera were detected:Linognathus stenopsisBurmeister, 1838;Linognathus africanusKellog and Paine, 1911;Bovicola capraeGurlt, 1843;Pulex irritansLinnaeus, 1758;Hippobosca equinaLinnaeus, 1758; andLipoptena cerviLinnaeus, 1758.Linognathus stenopsiswere the most prevalent, followed byB. capraeandP. irritans. In detected lice populations, female insects were more numerous; female: male ratios ranged from 2.2 to 7.2 and imagines prevailed over the nymphs. In fleas, male imagines were more numerous than females (1:0.8).Conclusion:The study demonstrated that the speciesL. stenopsis,L. africanus,B. caprae, andP. irritanswere encountered in more than 40% of surveyed farms, situated in 68.75% of regions in Bulgaria. The most intense infestation was by species from theLinognathusgenus (907 insects), whereas the highest extensity of infestation was registered forP. irritans(32.3%). This study detectedP. irritansas the only flea species.