The world of acoustics has seen remarkable advancements in recent years, thanks in large part to disruptive metrology techniques. These innovations have not only improved our understanding of sound but have also paved the way for groundbreaking developments in various fields, from healthcare to entertainment. Through an in-depth analysis of disruptive metrology methods, we aim to shed light on the exciting possibilities that lie ahead for acoustical innovations. The field of acoustics has witnessed remarkable progress in recent years, thanks to disruptive metrology techniques that have revolutionized the way we measure and understand sound. This chapter provides an overview exploring the significance, applications, and potential societal impact of these innovative measurement methods. Furthermore, the chapter discusses several disruptive metrology techniques, including near-field acoustic holography, acoustic metamaterials, acoustic tomography, and computational acoustics, emphasizing their contributions to the evolution of acoustical innovations. By pushing the boundaries of traditional measurement practices, disruptive metrology opens new avenues for research and development, promising a future where sound can be harnessed in ways previously unimaginable.