International Board Certified Lactation Consultants (IBCLCs) have played an important role in strengthening breastfeeding support around the world since the credential was first established in 1985. La Leche League played an integral role in the development of the IBCLC profession. Leaders from La Leche League were deeply involved in the early work that led to the creation of a standardized, international credential for lactation consultants, helping to shape a profession grounded in both evidence and the lived experience of supporting breastfeeding families.