Callan Pinckney (born Barbara Biffinger Pfeiffer Pinckney September 26, 1939 – March 1, 2012) was an American fitness professional who created and popularized as well as excelled in the Callanetics exercises. Pinckney's nine books became international best-sellers and the video series that followed sold over 6 million copies. Pinckney's first video release, Callanetics: 10 Years Younger In 10 Hours, outsold every other fitness video in the US. Within three years it had become the all-time individual best-selling fitness video.