Background: Acne vulgaris is the most prevalent chronic disease worldwide, occurs during adolescence. The pathogenesis is multifactorial with different grades of severity and the human vanin gene family especially vanin-1 might play a role in pathogenesis of acne. Aim: explore the role of Vanin-1 in acne vulgaris and its correlation with disease severity, duration, weight and residency. Patient and method: 42 acne patients and 42 age and sex matched healthy controls were enrolled. Skin biopsies were taken from the patient and normal skin of controls. Vanin-1 gene expression was estimated by real time PCR. Results: Expression of Vanin-1 gene in acne patients was significantly higher than healthy controls (p-value<0.001), also, there are positive correlation between VNN1 gene expression and patients weight and acne duration (P<0.001), also VNN1 gene expression is significantly higher among urban as compared with rural patients. Conclusion: VNN-1 gene expression is significantly higher in acne patients than healthy controls indicating thatVanin-1 gene involved in pathogenesis of acne vulgaris. In dermatological diseases; Vanin-1 might be a new promising target for therapeutic intervention in acne vulgaris.