This textbook is oriented towards the needs of aerospace engineering students, missile engineers, and missile program managers. It is intended to provide a basis for including tactical missile design as part of the aerospace engineering curriculum, providing new graduates with the knowledge they will need in their careers. This text uses simple closed-form analytical expressions that are physics-based, to provide insight into the primary driving parameters. It also provides example calculations of rocket-powered and ramjet-powered baseline missiles, typical values of missile parameters, examples of the characteristics of current operational missiles, discussion of the enabling subsystems and technologies of tactical missiles, and the current/projected state-of-the-art of tactical missiles.