Data visualization plays a significant role in business intelligence by transforming complex data sets into understandable visual formats, such as charts and graphs. This process allows decision-makers to quickly grasp trends, patterns, and outliers within the data, enhancing their ability to make informed decisions. Effective data visualization aids in summarizing information and uncovering insights that might be obscured in raw data. Consequently, it becomes an invaluable tool for communicating findings and guiding strategy in businesses looking to leverage their data assets.