The Hanoverian is a Warmblood horse breed originating in Germany, which is often seen in the Olympic Games and other competitive English riding styles, and has won gold medals in all three equestrian Olympic competitions. It is one of the oldest, most numerous, and most successful of the Warmblood breeds. Originally a cavalry horse, infusions of more Thoroughbred blood lightened it to make it more agile and useful for competition. The Hanoverian is known for a good temperament, athleticism, beauty, and grace.

Warmbloods are a group of middle-weight horse types and breeds primarily originating in Europe and registered with organizations that are characterized by open studbook policy, studbook selection, and the aim of breeding for equestrian sport. The term distinguishes these horses from both heavy draft horses and refined light saddle horses such as the Thoroughbred, Arabian, and Akhal-Teke. Although modern warmbloods are descended from heavier agricultural types systematically upgraded by hotblood influence, the term does not imply that warmbloods are direct crosses of "cold" and "hot".