Scientific associations exist to serve their members and advance their science. They also provide a platform for scientists to communicate their science and engage with the public, such as hosting free resources on their web pages and organizing outreach activities with local communities. Historically, scientific associations were often internally focused. Despite the common stereotype of exclusive clubs of gentleman naturalists, there are numerous examples since the 17th century of scientific associations encouraging public engagement. This became increasingly common, and throughout the last several decades, scientific associations like the American Association for Anatomy (AAA) have been working to make changes in how science, scientists, and the public work together to produce the best scientific outcomes. This viewpoint defines different levels of relationships between the scientist and the public and how they affect outcomes related to the public's trust in science and scientists. It then provides a historical perspective on how associations have contributed to the communication of science. Lastly, it discusses the role of associations in science communication and public engagement and whether it is important for associations and why. It concludes with examples of the strategic programs of AAA that demonstrate how scientific associations can support public engagement, resulting in benefits to the public, scientists, and the anatomical sciences.