The Osteopathic International Alliance is the leading organization for the advancement and unity of the global osteopathic profession. As an "organization of organizations," the OIA unifies osteopathic medicine by connecting schools, regulatory bodies, and regional, national, and multi-country groups.The OIA was admitted into official relations with the World Health Organization in 2018 and represents 73 organizations across five continents, which include over 120,000 osteopathic professionals. It is the primary international organization advocating for high-quality osteopathic healthcare and a leading representative of osteopathic clinicians and physicians worldwide.