The American Saddlebred, often called simply "Saddlebred" or historically the "Kentucky Saddler," takes its name from its development as the ultimate saddle horse—a comfortable, stylish mount for plantation owners and cavalry officers. The breed is registered with the American Saddlebred Horse Association (ASHA), founded in 1891 as one of America's oldest breed registries. The organization maintains studbook records tracing bloodlines to foundation sires and ensures breed standards remain consistent across generations. The breed's scientific classification is Equus ferus caballus, shared with all domestic horses, though Saddlebreds represent a uniquely American development.
The Saddlebred's original name, "American Horse," reflected colonists' pride in developing a distinctly American breed rather than relying on European imports. During the Civil War, both Union and Confederate forces prized these horses for their stamina, smooth gaits, and courage under fire, with many officers' mounts being Saddlebreds. Prominent examples include General Robert E. Lee's Traveller and General Ulysses S. Grant's Cincinnati. This military heritage contributed significantly to the breed's reputation for intelligence, bravery, and reliability under pressure.
Within the breed, horses are classified as "three-gaited" or "five-gaited" based on training and natural ability. Three-gaited Saddlebreds perform walk, trot, and canter with animated, elevated action. Five-gaited horses add the slow gait and rack—spectacular four-beat gaits demonstrating the breed's unique movement capabilities. This distinction primarily affects show ring presentation rather than breeding, as most Saddlebreds possess the physical attributes for five-gaited work with proper training. The breed's versatility extends beyond showing, with Saddlebreds excelling in dressage, combined driving, hunter pleasure, saddle seat equitation, and trail riding, demonstrating the adaptability that made them valuable throughout American history.

