Objective:To determine the magnitude of opportunistic and non-opportunistic intestinal parasitic infections among HTV/AIDS patients in Bahir Dar.Methods:Cross-sectional study was conducted among HIV/ AIDS patients attending Gambi higher clinic from Aprill- May 30,2009. Convenient sampling technique was employed to identify the study subjects and hence a total of 248 subjects were included.A pre-tested structured questionnaire was used to collect sociodemographic data of patients.Stool samples were examined by direct saline,iodine wet mount, formol-ether sedimentation concentration and modified Ziehl-Neelsen staining technique. Results:Out of 248 enrolled in the study,171(69.0%)(90 males and 81 females) were infected with one or more intestinal parasites.The highest rate of intestinal parasites were observed among HIV/AIDS patients(80.3%,151/188),and the infection rate of HIV negative individuals was 33.3%(20/60).Cryptosporidum parvum(43.6%),Isospora belli(15.5%) and Blastocystis hominis (10.5%) were opportunistic parasites that were found only in HIV/AIDS patients.Conclusions: Opportunistic parasite infections are common health problem among HIV/ AIDS patients in the study area.Therefore,early detection and treatment of these parasites are important to improve the quality of life of HIV/AIDS patients. Objective: To determine the magnitude of opportunistic and non-opportunistic intestinal parasitic infections among HTV / AIDS patients in Bahir Dar. Methods: Cross-sectional study was conducted among HIV / AIDS patients attending Gambi higher clinic from Aprill-May 30, 2009. Convenient sampling technique was employed to identify the study subjects and hence a total of 248 subjects were included. A pre-tested profiling questionnaire was used to collect sociodemographic data of patients. Tomato samples were examined by direct saline, iodine wet mount, formol-ether sedimentation Results: Out of 248 enrolled in the study, 171 (69.0%) (90 males and 81 females) were infected with one or more intestinal parasites. The highest rate of intestinal parasites were among among HIV / AIDS patients (80.3%, 151/188), and the infection rate of HIV negative individuals was 33.3% (20/60). Cryptosporidium parvum (43.6%), Isospora belli (15.5%) and Blastocystis homini s (10.5%) were opportunistic parasites that were found only in HIV / AIDS patients. Conclusions: Opportunistic parasite infections are common health problem among HIV / AIDS patients in the study area. Beforefore, early detection and treatment of these parasites are important to improve the quality of life of HIV / AIDS patients.