Fluid Mechanics and Machinery is designed to serve as a textbook for undergraduate and postgraduate students of mechanical and civil engineering. It will also be useful for students of electrical, aerospace, chemical, and production engineering. The book provides an exhaustive coverage of the essential concepts of the mechanics of fluids, both static as well as dynamic. In addition, it provides an overview of the design and operation of various hydraulic machines such as pumps and turbines. Beginning with an overview of the properties of fluids, the book gives a detailed discussion on topics such as fluid pressure and its measurement, principles of buoyancy and flotation, and fluid statics, kinematics, and dynamics. It then moves on to discuss dimensional analysis and flow of fluids through orifices, mouthpieces, and pipes, and over notches and weirs. More advanced topics such as vortex flow, impact of jets, and flow of compressible fluids have been dealt with in separate chapters. A thorough overview of the design and operation of various fluid machines such as pumps and turbines is provided to acquaint the readers with the practical applications of fluid forces. Given the practical nature of the subject, a large number of solved examples have been provided to help the students grasp the fundamentals and apply them to real-life situations.