Ralph Porter

Located within the Ontario Mills complex, the Ontario Improv is a cornerstone of the Inland Empire’s entertainment scene. As a key destination in the legendary Improv family of clubs—a brand with roots dating back to 1963—it carries forward a storied tradition of stand-up excellence. The venue provides a classic comedy club atmosphere that balances professional production with an inviting, intimate feel, making it an ideal spot for fans to experience live performance in a dedicated, high-energy setting. The stage regularly hosts a mix of major touring headliners and the industry’s fastest-rising stars. Renowned comedians such as Gabriel Iglesias, Jo Koy, and George Lopez have all headlined here, contributing to the club's reputation as a premier destination for world-class humor. Whether you are looking to see a household name or discover a fresh perspective, the Ontario Improv’s diverse calendar ensures a night of top-tier entertainment in the heart of Southern California.