What is 4-H? National Reach, Local Programs 4‑H is America’s largest youth development organization—empowering nearly six million young people with the skills to lead for a lifetime. What is 4-H? (National 4-H) 4-H Pledge The four Hs represent the four values that 4-H members stand for and develop during programming. 4-H Pledge (National 4-H) Follow