This report provides an overview of big data analytics and its applications across several sectors, including healthcare, education, tourism, transportation, finance, and manufacturing. It explores how big data analytics is used to improve patient care through predictive analytics and electronic health records in healthcare. In education, the report discusses how big data helps teachers and university administrators analyze student performance and develop better strategies. The tourism sector benefits from big data through personalized deals and revenue optimization. Transportation utilizes big data for traffic management and logistics. The finance and banking sector employs it to detect fraud and manage risks. Finally, the manufacturing sector leverages big data to optimize production, reduce costs, and enhance overall profitability. The report cites examples of real-world applications and discusses the benefits and challenges of big data analytics in each sector, highlighting its role in strategic decision-making and innovation.