Court Appointed Special Advocates (CASA) is a national association in the United States that supports and promotes court-appointed advocates for abused or neglected children. CASA are volunteers from the community who complete training that has been provided by the state or local CASA office. They are appointed by a judge, and their role is to gather information and make recommendations in the best interest of the child, keeping the child's personal wishes in mind.

According to the National CASA Association, there are more than 93,000 volunteers nationwide, serving in 49 states and the District of Columbia. North Dakota is the only state without a CASA program. Each year more than a quarter of a million children are assisted through CASA services.