Youth and high school sports are subject to regulation by private and public entities, resulting in numerous legal issues. Generally, private organizations regulate youth sports, and the rules primarily address the conduct of coaches and parents. Still, some states have extended to youth leagues statutory concussion protocols originally created for middle and high school sports. Governmental regulation is more prominent in high school sports, including state concussion laws and laws against hazing. Three federal laws are particularly important: Title IX, regarding the inclusion of female and, potentially, transgender athletes, and the Rehabilitation Act and the Americans with Disabilities Act, concerning athletes with disabilities. This chapter addresses an unresolved issue on each of those subjects before discussing high school athletes’ free-speech rights under the federal Constitution.