The American Heart Association (AHA) is a leading nonprofit organization in the United States dedicated to improving cardiovascular health and reducing the impact of heart disease and stroke. Founded in 1924 in Chicago, the AHA has grown to include over 35 million volunteers and supporters, with its headquarters located in Dallas, Texas. Its mission is to promote longer, healthier lives through research, education, advocacy, and professional development.

The AHA funds significant research initiatives, having invested over $5 billion since 1949 in areas related to cardiovascular and brain health. It also engages the public through educational campaigns and programs aimed at promoting healthy living, particularly among children. The organization publishes widely recognized guidelines for cardiovascular care and offers training courses in life support and emergency cardiovascular care. Additionally, the AHA advocates for public health policies that enhance community health and safety, including initiatives for tobacco control and access to physical activity. Through various fundraising events, the AHA mobilizes communities to support its mission.