Girls Who Know is an educational organization that helps girls build a positive relationship with themselves and their bodies. Its online programs are designed for girls ages 10 and up, with four-week live classes that bring participants together in supportive circles led by trained Girls Who Know mentors. The classes cover topics including female anatomy, the egg cycle, childbirth, consent, and respect for the body, with the aim of helping girls grow in confidence, trust their intuition, and make informed, empowered choices.

Girls Who Know also supports caregivers with practical tools and language to continue these conversations at home. Its team includes nurses, a childbirth educator, and a community liaison. Through its classes and resources, the organization encourages girls to express themselves, honor their needs, and feel more at home in who they are. Girls Who Know shares news and resources through its newsletter and provides information about its programs, scholarship opportunities, and community through its website.