JAMA (The Journal of the American Medical Association) is a prominent peer-reviewed medical journal published by the American Medical Association since 1883. It is recognized for its significant influence in the medical field, with a 2024 impact factor of 55.0, ranking it among the top journals in medicine and science. JAMA is part of the JAMA Network, which includes various specialty medical journals, and publishes 48 issues annually in both print and online formats.

The journal features original research, reviews, editorials, and commentaries that cover all aspects of biomedicine and clinical medicine. JAMA has a strong online presence, with over 30 million annual website visits and a large following on social media. It aims to improve public health and advance medical knowledge, serving a diverse audience that includes physicians, healthcare professionals, researchers, and policymakers worldwide. JAMA also supports open access initiatives, making research articles freely available online six months after publication and providing access to institutions in developing countries.