The Oregon National Primate Research Center (ONPRC) is one of eight federally funded National Primate Research Centers in the United States and has been affiliated with Oregon Health and Science University (OHSU) since 1998. The center is located on 350 acres (1.4 km²) of land west of Portland, Oregon, in Hillsboro. Originally known as the Oregon Regional Primate Research Center (ORPRC), it was the first of the original seven primate centers established by the National Institutes of Health (NIH).