O'Reilly Automotive, Inc., known as O'Reilly Auto Parts, is a prominent American retailer and supplier of automotive aftermarket parts, tools, supplies, equipment, and accessories. Founded in 1957 in Springfield, Missouri, by Charles F. O'Reilly and his son, the company began as a single store and has since expanded to operate over 6,400 stores across the U.S., Puerto Rico, Mexico, and Canada.
O'Reilly offers a comprehensive range of automotive replacement parts and tools, emphasizing parts availability and expert customer service. The company serves both professional service providers and do-it-yourself customers, supported by a knowledgeable team known as "Professional Parts People." O'Reilly has experienced significant growth over the years, becoming one of the leading auto parts chains in the country while maintaining a commitment to family values and community service.