Rancho Peñasquitos is a suburban community in the northeastern part of the city of San Diego, California. It is named after the first Mexican land grant in the county, Rancho Santa Maria de Los Peñasquitos. Peñasquitos means "little cliffs" in Spanish. It abuts Los Peñasquitos Canyon Preserve, an open space preserve that offers hiking, biking, and equestrian trails. The community is commonly abbreviated "PQ."