Boucher (1969 – after 1986), was an American-bred, Irish-trained Thoroughbred racehorse and sire. In Ireland he won the Beresford Stakes as a two-year-old in 1971 and went on to win the Nijinsky Stakes and the Desmond Stakes in 1972. In September 1972 he was sent to England where he won the St. Leger Stakes at Doncaster. At the end of the season he was retired to stand as a stallion in Australia, where he had some success as a sire of winners.

Boucher was a chestnut horse bred in Kentucky by his owner Ogden Phipps. He was sired by the undefeated Italian champion Ribot out of the mare Glamour. As a descendant of the broodmare La Troienne, Boucher was a member of the Thoroughbred Family 1-x, which has produced numerous important winners including Buckpasser, Easy Goer and Allez France.^[1] Phipps sent the colt to be trained in Ireland by Vincent O'Brien at Ballydoyle. Although Boucher was named after the painter François Boucher his name was usually pronounced as "Bowtcher" (baʊtʃə).

Boucher won two of his three races as a two-year-old in 1971. After winning a maiden race he was moved up in class and won the Group Two Beresford Stakes at the Curragh. He was then sent to England to contest the Group One Observer Gold Cup at Doncaster. He finished fourth behind the English-trained High Top, who went on to win the following season's 2000 Guineas.^[2]

Boucher began his three-year-old season by winning the Nijinsky Stakes. He was then sent to England for the Chester Vase, an important trial race for The Derby. He started favourite, but made no impression, finishing last of the six runners behind Ormindo. He was subsequently found to be suffering from a viral infection and was off the course for three months.^[2]

Boucher returned in August and won a handicap race over ten furlongs at Leopardstown. He then won the Group Three Desmond Stakes at the Curragh, beating the filly Pidget who had won the Irish 1000 Guineas and went on to win the Irish St Leger.^[2] In the St Leger at Doncaster, Boucher started at odds of 3/1 against six opponents, with the Irish Derby winner, Steel Pulse, being made the 9/4 favourite. Ridden by Lester Piggott he moved up to challenge for the lead two furlongs from the finish and won after a struggle^[3] by half a length from Our Mirage, with The Oaks winner Ginevra four lengths further back in third. The race was run on extremely soft ground and the winning time of 3:28.71 was the slowest recorded at Doncaster in the 20th century.^[4] On his only subsequent appearance, Boucher ran in the Prix de l'Arc de Triomphe, a race for which he had reportedly been strongly fancied by Vincent O'Brien.^[5] He raced prominently and contested the lead in the straight but was outpaced in the closing stages and finished unplaced behind San San.^[6]

Boucher was given a rating of 124 by Timeform in 1972. This was the lowest rating given to a St Leger winner in the organisation's history.^[7]

Boucher was sold for A$530,000^[8] to the Australian breeder John Kelly exported to stand as a stallion at the Newhaven Park Stud in New South Wales.^[9] He sired several good winners including Lawman (Doncaster Handicap), Been There (Silver Slipper Stakes) and Mr Independent (Carlyon Cup).The last of Boucher's foals were born in 1987.^[10]