Android Middleware refers to software components that facilitate communication between different software applications and operating systems on Android devices. These components include libraries, frameworks, and APIs that enable the development of applications that can interact with hardware devices and software components across multiple layers of the operating system. Android Middleware helps developers create complex applications quickly and efficiently by providing them with tools and libraries necessary to implement complex functionality such as audio and video playback, database integration, and networking. It is a specialized skill that requires a deep understanding of the Android operating system and its inner workings, as well as experience with various programming languages and development tools.