Engineers and designers are compelled to reduce structural weight of conventional vehicles and airplanes to mitigate greenhouse gas emissions. Furthermore, future electric-powered and hydrogen-powered aircraft concepts will require heavy battery blocks, fuel tanks or cells. Therefore high-performance lightweight structures will play an important role in improving autonomy of future aerial and terrestrial vehicles. Metal-polymer hybrid materials (MPHM) and structures are potential candidates to fulfill this requirement. These hybrid materials and structures are characterized by the presence of solid interface(s), normally with a sharp gradient in properties. The intrinsic dissimilarity between metals and polymer imposes engineering challenges, requiring creative and material-friendly manufacturing approaches. Currently, the state-of-the-art production of MPHM – e.g. the hybridization of the metal with composites via semi-automated lamination techniques or via injection overmolding - is time consuming. Moreover, several complex geometries, such as those having internal 3D-features, cannot be usually manufactured. The combination of metal and polymer additive manufacturing (AM) has the potential to overcome these shortcomings. This highlight talk will provide an overview of the state of the art on the AM metal-polymer hybrid structures. Focus will be given on case-studies combining laser powder bed fusion (L-PBF) and fused-filament fabrication (FFF) processes.