The University of California, Davis Arboretum is an approximately 100-acre (0.40 km2) arboretum along the banks of the old north channel of Putah Creek on the south side of the University of California, Davis campus in unincorporated Yolo County, California, in the United States.

The University of California, Davis is a public land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University of California system. The institution was first founded as an agricultural branch of the system in 1905, known as University Farm, and became the seventh campus of the University of California in 1959.