A hybrid electroslag additive manufacturing method is provided. This hybrid method combines the benefits of wire-arc additive manufacturing with the benefits of electroslag welding and casting. As discussed herein, the hybrid method employs an interleaved wall-and-infill strategy, wherein the wall is manufacturing via wire-arc additive manufacturing or other directed energy deposition, and the infill is provided by electroslag welding/casting techniques or similar processes, such as submerged arc welding. The hybrid method can produce large, complex components at higher rates with lower lead times than either of the techniques individually.