This study aimed to evaluate the frequency and distribution characteristics of intestinal parasites and human immunodeficiency virus (HIV) seropositivity in children and adults presenting to a tertiary care hospital in Mogadishu, Somalia. The study included the results of all parasitological stool examinations conducted between November 2015 and November 2019. In addition, the HIV serological status of individuals was retrospectively analyzed. During the four-year study period, at least one intestinal parasite was found in stool samples from 1,538 (6.23%) of 24,676 individuals. A total of 1,570 intestinal parasites were detected in 1,538 patients (42.5% aged 10 years and under), including 44 parasites in mixed infections and 20 parasites in 10 patients at different times. The most common intestinal parasite was Giardia lamblia (n=730, 46.5%), followed by Entamoeba histolytica (n=677, 43.1%), Ascaris lumbricoides (n=30, 1.9%), Hymenolepis nana (n=28, 1.78%), Trichomonas hominis (n=26, 1.66%), Trichuris trichiura (n=26, 1.66%), and eight other species (n=53, 3.38%). HIV seropositivity was present in 1.12% (4/358) of the patients with parasitic infections and ©Copyright JMVI. Licenced by Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0).