Ontario Mills is the largest shopping mall and outlet mall in San Bernardino County, California, United States. It is located in Ontario, California, and with 28 million annual visitors, it is one of the top shopping and tourist destinations in Southern California. It is one of three Mills landmarks in California that are now managed by Simon Property Group since April 2007. Simon owns 50% of it. The Outlets at Orange and The Great Mall are the others. Ontario Mills was designed by the architectural firm, F+A Architects.
The mall is near the Ontario International Airport, as well as the interchange between the Ontario Freeway (Interstate 15) and the San Bernardino Freeway (Interstate 10), one of the busiest in Southern California.