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.
Cian O'Connor is an Irish equestrian who competes in show jumping. He has competed at three Olympic Games, four World Championships and six European Championships. O'Connor was stripped of the gold medal at the 2004 Olympics when his horse was found to have a banned substance in its system.
The Oldenburg or Oldenburger is a warmblood horse from the north-western corner of Lower Saxony, what was formerly the Grand Duchy of Oldenburg. The breed was built on a mare base of all-purpose farm and carriage horses, today called the Alt-Oldenburger. The modern Oldenburg is managed by the Association of Breeders of the Oldenburger Horse, which enacts strict selection of breeding stock to ensure that each generation is better than the last. Oldenburgers are tall sport horses with excellent gaits and jumping ability. The breeding of Oldenburg horses is characterized by very liberal pedigree requirements and the exclusive use of privately owned stallions rather than restriction to a state-owned stud farm.
The Selle Français (SF) is a breed of sport horse from France. An athletic horse with good gaits, it is usually bay or chestnut in color. The Selle Français was created in 1958 when several French riding horse breeds were merged into one stud book. The new breed was meant to serve as a unified sport horse during a period when horses were being replaced by mechanization and were transforming into an animal used mainly for sport and leisure.
The Holsteiner is a breed of horse originating in the Schleswig-Holstein region of northern Germany. It is thought to be the oldest of warmblood breeds, tracing back to the 13th century. Though the population is not large, Holsteiners are a dominant force of international show jumping, and are found at the top levels of dressage, combined driving, show hunters, and eventing.
Cor de la Bryère, nicknamed "Corde", is one of the most influential sires in modern warmblood breeding. He is known as the "Reserve Stallion of the Century", second only to Landgraf I. He stood 16.2 hands.
Álvaro Affonso de Miranda Neto, more commonly known as Álvaro de Miranda or "Doda" Miranda, is an Olympic-class Brazilian show jumping rider. He was married to Athina Onassis. He is president of the organizing committee behind the Athina Onassis International Horse Show, which debuted in 2007 as the fifth stage of the Global Champions Tour in São Paulo. In 2008, the AOIHS-São Paulo event was the final phase of the tour. For the tour in 2009, the host city of the AOIHS was Rio de Janeiro.
The Brazilian Sport Horse or Brasileiro de hipismo is a modern Brazilian breed of warmblood horse. It was bred as a sport riding horse for competitive equestrian sports, particularly show jumping, dressage and three-day eventing.
The Bavarian Warmblood is a horse breed of southern Germany that developed from an older Bavarian heavy warmblood breed called the Rottaler. Since mechanization in the mid-20th century, the Bavarian Regional Horse Breeders' Society has concentrated on producing a riding horse for the Olympic disciplines and recreational riding based on other European warmblood bloodlines.
Ellen Whitaker is an English show jumping rider, currently ranked 191 on the FEI riders Longines Ranking list in July 2022.
Meredith Michaels-Beerbaum is an American-born German equestrian who competes at the international level in show jumping.
Ingrid Klimke is a German eventing rider. She appeared at five Olympics from 2000 to 2016. With her horse Abraxxas, she won two gold medals in team eventing at the 2008 Summer Olympics and the 2012 Summer Olympics. At the 2016 Summer Olympics, she won a team silver with Hale-Bob.
Steve Guerdat is a Swiss equestrian who competes in the sport of show jumping.
Christopher "Burto" Burton is an Australian equestrian. He was selected to represent Australia at the 2012 Summer Olympics in equestrian eventing.
Dirk Schrade is a German equestrian. At the 2012 Summer Olympics he competed in the Individual eventing and team eventing, where Germany won the gold medal.
Sven Ludwig Svennerstål is a Swedish equestrian. At the 2012 Summer Olympics and 2016 Summer Olympics he competed in the individual eventing, and was part of the Swedish eventing team on both occasions.
Paul Estermann is a Swiss equestrian who competes in the sport of show jumping.
Reed Catherine Kessler is a former American show jumping competitor previously based in the Netherlands. At 18 years old, Kessler qualified for the 2012 London Olympics, becoming the youngest rider in Show Jumping history to ever compete at the Games. Kessler trained with her godparents Katie and Henri Prudent for seven years. In September 2013 she began training with Germany's Marcus Ehning and moved to his home base in Borken, Germany. Kessler is also an Ambassador for JustWorld International, a charity supporting education and healthcare in developing countries.
Astier Nicolas is a French equestrian. He represented his country at the 2016 Summer Olympics, where he won the gold medal in the team eventing and the silver in the individual eventing.
The Zangersheide is a Belgian breed or stud-book of warmblood sport horses. It is one of three Belgian warmblood breeds or stud-books, the others being the Belgian Sport Horse and the Belgian Warmblood.
Switzerland 
