Metamaterials are engineered structures whose extraordinary properties arise from their geometry rather than composition, enabling novel functionalities in acoustics, elasticity, energy absorption, electromagnetics, and thermal applications. This minisymposium focuses on the synergy between modelling, simulation, and fabrication in advancing metamaterial science and engineering. We invite contributions on analytical and numerical modelling, multiscale and multiphysics simulation, topology optimization, nonlinear and tunable metamaterials, as well as advanced manufacturing methods such as additive manufacturing and micro-/nano-fabrication. A key emphasis lies on integrated workflows where computational design guides fabrication and experimental feedback refines models. By uniting researchers from applied sciences, engineering, and materials science, the symposium will foster exchange on state-of-the-art methods, emerging trends, and real-world applications, bridging the gap between theory and practical implementation.