Rancho Bernardo is a neighborhood of the city of San Diego, California with a population of 49,115 (as of 12/2006). It is geographically located about 20 miles north-north-east of downtown San Diego, immediately northwest of the city of Poway and south of Escondido.

Rancho Bernardo, or popularly known as RB, was born in 1789 with a land grant from the king of Spain as La Cañada de San Bernardo (or "The Gorge of St. Bernard"). As the early name implies, the topography of RB consists of beautiful canyons and rolling hills. At the beginning of RB's history (circa 1800) the population consisted of indigenous Native Americans and ranchers