As a sustainable and clean energy source, wind turbines are becoming an essential part of renewable energy systems. Understanding the features, uses, and constraints of wind turbines requires an understanding of their classification. This study offers a thorough classification of wind turbines according to their generator type, application, and rotor configuration, number of blades, control systems, and axis of rotation. The study also looks at the many uses of wind turbines, such as small-scale wind energy systems, urban wind power, and offshore and onshore wind farms. The results of this study can help guide policy and decision-making in the field of renewable energy and offer insightful information about the design, development, and deployment of wind turbines.