This research aims: (1) To examine the partial influence of Brand Awareness on Purchase Decision. (2) To examine the partial influence of Brand Image on Purchase Decision. (3) To examine the simultaneously influence of Brand Awareness and Brand Image on Purchase Decision. This research used explanatory research with quantitative approach. Total sample were 94 customers of Aqua bottled 600ml product and it elected by Purposive Sampling Technique. Data were collected valid and reliable by questionnaire, and analyzed by multiple regression. The research showed that: (1) Brand Awareness has partially influence on Purchase Decision, (2) Brand Image has partially influence on Purchase Decision, (3) Brand Awareness and Brand Image has simultaneously influence on Purchase Decision. Based on t test, it can be concluded that the Brand Awareness has dominant influence on Purchase Decision. Therefore, the company expected to maintain, manage, and improve Brand Awareness that has dominant influence on Purchase Decision.