The Paleontological Research Institution (PRI) is a natural history museum located in Ithaca, New York. Founded in 1932, PRI has outstanding programs in research, collections, publications, and public outreach. The Institution cares for a collection of 2-3 million specimens (one of the 10 largests in the U.S.), and publishes the oldest paleontological journal in the Western Hemisphere (Bulletins of American Paleontology, begun in 1895).

PRI is a national leader in development of informal (i.e., outside the classroom) Earth science education resources for educators and the general public. PRI is separate from but formally affiliated with nearby Cornell University, and interacts closely with numerous units of the University in research, teaching, and public outreach.