Online advertising has become one of the most effective tools for businesses to create and enhance brand awareness in the digital era. With the increasing use of the internet and social media platforms, companies are shifting from traditional advertising methods to online channels such as social media ads, search engine marketing, display advertising, and video promotions. This study aims to examine the influence of online advertising on brand awareness among consumers. The research analyzes how factors such as advertisement content, frequency of exposure, creativity, and platform selection affect consumer’s ability to recognize and recall brands. Data for the study is collected through consumer surveys and secondary sources, and the findings indicate that online advertising plays a significant role in improving brand visibility, recognition, and customer engagement. The study concludes that effective online advertising strategies help organizations build strong brand awareness and gain a competitive advantage in the market.