Solid Oxide Fuel Cells (SOFCs) are considered a key enabling technology for the decarbonisation of power generation and hydrogen-based energy systems due to their high efficiency, fuel flexibility, and low operational emissions. However, the large-scale deployment of SOFC technology is still limited by high manufacturing costs, energy-intensive production processes, and the use of critical raw materials. In this context, it is essential to evaluate the environmental impacts associated with SOFC manufacturing to guide technological development toward more sustainable and circular solutions. This thesis presents a cradle-to-gate Life Cycle Assessment (LCA) of the manufacturing process of solid oxide fuel cells and stacks, focusing on a 3-kW anode-supported SOFC stack produced within a European industrial context.