Background/Objectives: This study aims to develop and validate a Midwifery Interventions Classification (MIC), which is an evidence-based, standardized taxonomy and classification of core midwifery interventions based on a salutogenic perspective for maternity care. Methods: This study described the consensus process up to the results regarding the validation of the MIC through a two-round Delphi survey involving three panels of stakeholders: Midwives, Healthcare Researchers, and Maternity Service Users. Results: The resulting MIC comprises 135 core midwifery interventions classified into Direct Midwifery care (n = 101 interventions), Indirect Midwifery Care (n = 52 interventions), and Community Midwifery Care (n = 13 interventions), reaching an overall consensus rate among experts equal to 87%. These interventions were, therefore, adapted specifically for the Italian midwifery care context, with potential for international transferability, implementation, and scalability. Conclusions: The MIC is pivotal to boosting quality improvement, education, and comparable data collection for research, sustaining midwives’ role in promoting optimal health for women, newborns, and families at large.