Keiko Ihara (井原 慶子, Ihara Keiko) (born July 4, 1973) is a Japanese female race car driver. She was a former race queen, a model who appears in a swimsuit or other fashionable apparel at race circuits, before deciding to become a racing driver. She is one of the few Japanese women nationals to race internationally at a high level. Her best finishes in the British Formula Three Championship are two 8th places finishes in 2005, which helped her to a final championship standing position of 16th with 12 points. In the 2006 series, she finished in 17th and last position in the Championship Class, with 4 points.