Manufacturing organizations witness sustainability as a powerful vehicle for attaining competitive advantage. Among three dimensions, process dimension is gaining vital attention for sustainability performance improvement. This chapter presents the conceptualization of process sustainability tools selection as decision-making problem with 10 governing criteria and five alternatives. A decision support system has been developed using fuzzy analytic hierarchy process (AHP) as solution methodology. The proposed methodology has been demonstrated with injection molding as the candidate process. Based on the study, carbon footprint analysis tool is found to rank first followed by waste minimization, energy modeling, and parametric optimization and water footprint analysis strategies.