Abstract:Background: The introduction of highly active antiretroviral therapy (HAART) has led to a marked reduction in Acquired Immune Deficiency Syndrome (AIDS) related morbidity and mortality. However, HAART has been reported to be associated with a number of side effects in human immunodeficiency virus (HIV) positive persons among which dyslipidemia and lipodystrophy are common metabolic disorders. Objective: To assess the prevalence and predictors of dyslipidemia among HAART and HAART naive HIV positive persons in Defense Hospital, Addis Ababa-Ethiopia. Methods: A facility based comparative cross-sectional study among 228 HIV positive persons was conducted from September to October 2013. Socio-demographic and clinical data were collected using structured questionnaires. Fasting venous blood sample was drawn for laboratory analysis. Lipid profiles were measured using clinical chemistry analyzer (HumStar80, USA). CD4 cell counting was done using BD FACS Count™ (BD, USA). Anthropometric measurement was done. Data was analyzed using SPSS version 20 for windows. Result: A total of 228, 114 on HAART and 114 HAART naïve HIV positive persons, were enrolled in the study. The overall prevalence of dyslipidemia was 63.6%. Prevalence of dyslipidemia in HAART naive and on HAART HIV positive persons was 61(53.5%) and 84(73.7%), respectively. The prevalence of TC≥200 mg/dl was 50% and 30%; HLD-c<40 mg/dl was 43.8% and 36%; LDL-c≥130mg/dl was 48.3% and 28.1%; and TG≥150 mg/dl 59.6% and 39% among on HAART and HAART naïve, respectively. Age greater than 40 years old (AOR = 3.27, 95% C.I: 1.47 -7.25), blood pressure ≥ 140/90 (AOR = 16.13, 95% C.I: 5.81 -44.75), being on HAART (AOR = 2.73, 95 % C.I: 1.35 -5.53), and body mass index > 25kg/m 2 (AOR = 1.92, 95 % C.I: 1.20 -4.81) were identified as determinants of dyslipidemia. Conclusion: The mean value of lipid profile was significantly higher on HAART as compared to HAART naïve HIV positive persons. It is important to have well controlled cohort studies for the evaluation of long-term effects of HAART on lipid profiles.