37 British Champion Thoroughbred Sires

Bay Bolton or Brown Lusty (1705–1736) was a British Thoroughbred racehorse who won Queen Anne's Gold Cup as a five-year-old in 1710. After retiring from racing he became a successful sire for the Charles Paulet, 2nd Duke of Bolton, and his son Charles Powlett, 3rd Duke of Bolton, was Champion sire seven times.

Blacklock was a British Thoroughbred racehorse who won seventeen of his twenty-three races. As a two-year-old in 1816 he was undefeated in three starts. In his first race as a three-year-old he finished second in the St. Leger, a neck behind Ebor. He then won four races in two weeks, including the Gascoigne Stakes and Dundas Stakes. In 1818 he recorded several wins including two of the Great Subscription Purses at York. He won a third Great Subscription Purse in 1819, along with the York Gold Cup. After retiring from racing, Blacklock became a successful stallion and was champion sire of Great Britain in 1829, the year his son Voltaire won the Doncaster Cup. He was owned by Thomas Kirby as a two-year-old, before being purchased by Richard Watt, who owned him for the remainder of his racing career. Blacklock was trained by Tommy Sykes.

Blandford (1919–1935) was an Irish-bred Thoroughbred racehorse best known as the three-time Leading sire in Great Britain & Ireland who sired eleven British Classic Race winners including four which won The Derby. He was the Leading sire in France and also in England in the same year.

Blushing Groom was a French Champion Thoroughbred racehorse and sire.

Court Martial was a Thoroughbred racehorse bred and raced by Lord Astor best known for defeating two exceptional colts in Dante and Royal Charger for the Classic 2000 Guineas Stakes and as a two-time leading sire in Great Britain and Ireland.

Danehill was a Thoroughbred racehorse who was bred in the United States. During his stud career, Danehill became a champion sire on both sides of the Equator. He is the most successful sire of all time with 349 stakes winners and 89 Group/Grade I winners. He was the leading sire in Australia nine times, the leading sire in Great Britain and Ireland three times, and the leading sire in France twice.

Danehill Dancer was a bay horse bred by L. K. and K. McCreery and foaled on 20 January 1993. He was sired by Danehill, who won the Haydock Sprint Cup in 1989. Danehill Dancer's dam is Mira Adonde, a daughter of Sharpen Up. Mira Adonde was trained by Alec Stewart, but only raced once, finishing seventh in a seven-furlong maiden race at Newmarket.

Filho da Puta was a British Thoroughbred racehorse. He won nine of his 12 races including the St. Leger Stakes and Doncaster Gold Cup. He also sired St. Leger winner Birmingham and was the leading sire in Great Britain and Ireland in 1828. He was owned by Sir William Maxwell and later T. Houldsworth. His name means "son of a bitch" in Portuguese.

Gainsborough (1915–1945) was a British bred Thoroughbred racehorse who won the English Triple Crown in 1918 and became a superior sire.

Galileo is a retired Irish Thoroughbred racehorse and active sire. In a racing career which lasted from October 2000 until October 2001 he ran eight times and won six races. He is best known for winning The Derby, Irish Derby Stakes, and King George VI and Queen Elizabeth Stakes in 2001 and for his rivalry with the Godolphin champion Fantastic Light. He was named the European Champion Three-Year-Old Colt of 2001.

Hermit (1864–1890), sometimes known, incorrectly as "The Hermit", was a 19th-century British Thoroughbred racehorse and sire. In a racing career which lasted from April 1866 until July 1869 he ran 23 times and won eight races. He was a leading two-year-old in 1866 and won the 1867 Epsom Derby, despite breaking down in training shortly before the race. He continued to race until the age of five, but never recovered his form after running three times in three days at Doncaster in September 1867. After his retirement he had a long and highly successful career at stud.

Herod was a Thoroughbred racehorse. He was one of the three foundation sires of the modern Thoroughbred racehorse, along with Matchem and Eclipse. Herod was the foundation sire responsible for keeping the Byerley Turk sire-line alive.

Hurry On was an undefeated British Thoroughbred racehorse and sire that revived the Matchem sire line. English trainer Fred Darling called Hurry On the best horse he ever trained.

Hyperion was a British-bred Thoroughbred, a dual classic winner and an outstanding sire. Owned by Edward Stanley, 17th Earl of Derby, Hyperion won GBP £29,509 during his racing career—a considerable sum at the time. His victories included the Epsom Derby and St Leger Stakes. He was the most successful British-bred sire of the 20th century and was champion sire in Great Britain six times between 1940 and 1954.

King Tom (1851–1878) was a British Thoroughbred racehorse and a Leading sire in Great Britain & Ireland.

Lord Clifden was a British Thoroughbred racehorse. He was undefeated as a two-year-old, including wins in the Woodcote Stakes and Champagne Stakes. As a three-year-old he was just beaten by a short-head in the Derby, before winning the St. Leger later in the season, despite being 100 yards behind the rest of the field at one point in the race. After an unsuccessful four-year-old campaign he was retired to stud and became champion sire of Great Britain and Ireland in 1876. He sired the St. Leger winners Hawthornden and Wenlock, the dual-Classic winners Petrarch and Jannette, as well as the champion sire Hampton. Lord Clifden was purchased by Carnegie Robert John Jervis, 3rd Viscount St Vincent, after his first race and was sold to Thomas Gee as a stallion. As the two and three-year-old he was trained by Edwin Parr, with William Bevill training him for his four-year-old season.

Mill Reef (1968–1986) was a Champion Thoroughbred racehorse and sire. He was bred in the United States but was trained in the United Kingdom throughout his racing career which lasted from 1970 to 1972. Mill Reef won twelve of his fourteen races and finished second in the other two. He was an outstanding two-year-old in 1970, and proved even better at three, winning the Epsom Derby, the Eclipse Stakes, the King George VI and Queen Elizabeth Stakes and the Prix de l'Arc de Triomphe. He won both his starts as a four-year-old before his racing career was ended by injury.

Nearco was an Italian-bred Thoroughbred racehorse described by Thoroughbred Heritage as "one of the greatest racehorses of the Twentieth Century" and "one of the most important sires of the century." He was unbeaten, winning 14 races at distances from 1000m to 3000m, including the Derby Italiano and Grand Prix de Paris. He was then sold for a record amount to Martin H. Benson and stood stud in England, where he became the patriarch of several of the most dominant sire lines in Thoroughbred history.

Newminster was a British Thoroughbred racehorse who won the St. Leger Stakes in 1851. He raced for four seasons, winning two of his ten races. He retired to stud in Yorkshire and became British champion sire in 1859 and 1863. Newminster sired the Derby winners Musjid and Hermit and the champion sires Adventurer and Lord Clifden. He was trained by John Scott and owned by Anthony Nichol throughout his racing career.

Nijinsky, usually known in the United States as Nijinsky II, was a Canadian-bred, Irish-trained Thoroughbred racehorse and sire. He was the outstanding two-year-old in Europe in 1969 when he was unbeaten in five races. In the following season, he became the first horse for thirty-five years to win the English Triple Crown, a feat that had not been repeated as of 2020. He is regarded by many experts to have been the greatest flat racehorse in Europe during the 20th century.

Northern Dancer was a Thoroughbred who in 1964 became the first Canadian-bred horse to win the Kentucky Derby. He then became one of the most successful sires of the 20th century. He is considered a Canadian icon, and was inducted into the Canadian Sports Hall of Fame in 1965. Induction into the Racing Hall of Fame in both Canada and the United States followed in 1976. As a competitor, The Blood-Horse ranked him as one of the top 100 U.S. Thoroughbred racehorses of the 20th century. As a sire of sires, his impact on the breed is still felt worldwide.

Orme was a British Thoroughbred racehorse. He was trained at Kingsclere by John Porter for the 1st Duke of Westminster. As a two-year-old he won the Middle Park and Dewhurst Stakes. As a three-year-old he was not well enough to take part in the 2000 Guineas and Epsom Derby, but came back to win the Eclipse Stakes. Orme stayed in training as a four-year-old and won another Eclipse Stakes, becoming the first horse to win the race twice, a feat that has only been repeated four times since. After he had retired from racing, he became a successful sire and was Champion sire of Great Britain in 1899. His son Flying Fox won the Triple Crown and the Eclipse Stakes. Orme also sired Epsom Derby winner Orby and 1000 Guineas winner Witch Elm. His regular jockeys were George Barrett and Morny Cannon.

Phalaris was a British bred Thoroughbred racehorse, later a Leading sire in Great Britain and Ireland and a Leading broodmare sire in Great Britain & Ireland. He appears in the sireline of all racehorses which were winners of more than $10 million, as well as all yearlings that were auctioned for more than $7.5 million.

Pharos was a British bred thoroughbred racehorse and a Leading sire in Great Britain & Ireland.

Regulus was an undefeated Thoroughbred racehorse stallion foaled in 1739.

Ribot was a British-bred Italian-trained Thoroughbred racehorse who is one of the Timeform top-rated racehorses of all time. He is considered by many experts to be in the top 3 of the most complete and strongest racehorses in history. Undefeated in sixteen races, he won over all distances, from 5 furlongs (1,000m) to 1m 7f (3,000m) in three countries and on all types of track conditions. He was the best Italian two-year-old of 1954, when his three wins included the Gran Criterium. He won his first four races of 1955 in Italy before being sent to France where he won the Prix de l'Arc de Triomphe. In the following year he was even better, recording wide-margin victories in both the King George VI and Queen Elizabeth Stakes and the Prix de l'Arc de Triomphe.

Sir Peter Teazle was a good British bred Thoroughbred racehorse, a Leading sire in Great Britain & Ireland nine times, and carried on the sire line of Herod.

Snap was a Thoroughbred racehorse who won all four of his races. After retiring from racing he became a successful stallion. He was Champion sire four times and his progeny included the undefeated Goldfinder.

Solario (1922–1945) was a successful British Thoroughbred racehorse and influential sire.

Son-in-Law was a British Thoroughbred racehorse and an influential sire, especially for sport horses.

St. Simon was an undefeated British Thoroughbred racehorse and one of the most successful sires in the history of the Thoroughbred. In May 1886 The Sporting Times' carried out a poll of one hundred experts to create a ranking of the best British racehorses of the 19th century. St. Simon was ranked fourth, having been placed in the top ten by 53 of the contributors.

Swynford was a British Thoroughbred racehorse. Bred at the 16th Lord Derby's stud in Lincolnshire, England he was sired by John O'Gaunt, a son of Isinglass, winner of the British Triple Crown in 1893. His dam was Lord Derby's foundation mare and 1896 Epsom Oaks winner Canterbury Pilgrim who also produced Chaucer, the 1927 and 1933 Leading broodmare sire in Great Britain & Ireland.

Tetratema was an Irish-bred, British-trained Thoroughbred racehorse and sire. In a racing career which lasted from May 1919 until October 1921 he won thirteen of his sixteen races, include the all twelve of his starts over the sprint distances of five and six furlongs. He was unbeaten in five races in 1919, including the Molecomb Stakes, Champagne Stakes, and Middle Park Stakes, and was the highest-rated two-year-old in Britain by a record margin. In the following year he had enough stamina to win the Classic 2000 Guineas over a mile, but failed to stay when unplaced in both The Derby and the Eclipse Stakes. He then returned to sprinting and won his remaining two races of 1920 and all four in 1921. His successes in this phase of his career included the King's Stand Stakes, July Cup and two runnings of the King George Stakes.

The Tetrarch (1911–1935) was an Irish-bred, British-trained Thoroughbred racehorse. He was undefeated in a racing career of seven starts and was voted the best British-trained two-year-old of the 20th century according to the National Horseracing Museum. He did not race after 1913 and was retired to stud where he became an influential sire.

Touchstone (1831–1861) was a British bred Thoroughbred racehorse and a Leading sire in Great Britain & Ireland on four occasions. He was owned and bred by Robert Grosvenor, 1st Marquess of Westminster who bought him for the cheap price, at the time, of only 600 guineas at the insistence of his chief stud groom Mr. Thomas Nutting.

Walton was a British Thoroughbred racehorse. He raced until he was eight years old, winning sixteen of his twenty five races. His first race was in 1802, with his first big win, the Third Class of the Oatlands Stakes, coming in 1803. He went on to win eight King's Plates and recorded wins over several leading racehorses of the time. He was owned by Sir Hedworth Williamson throughout his racing career. Walton later became a successful stallion and was champion sire of Great Britain twice. He sired the Derby winner Phantom, 2000 Guineas winner Nectar and St. Leger winner St Patrick.

Wolver Hollow (1964–1987) was a British-bred Thoroughbred racehorse and stallion. In a career spanning four seasons, his performances in handicaps and top class company, including victory in the 1969 Eclipse Stakes, established him as a talented racehorse without being exceptional. He would achieve greater success as a stallion whereupon retiring to stud where he became Champion Sire in Britain.