Orville (1799–1826) was a British Thoroughbred racehorse and sire. In a racing career which lasted from August 1801 until October 1807 the horse ran thirty-four times and won twenty races. In his early career he was based in Yorkshire and won the classic St Leger Stakes at Doncaster Racecourse as a three-year-old in 1802.

He had some success in the next two seasons before being sold to the Prince of Wales and being moved to campaign in the south of England. In his last three seasons he won fifteen races at long distances, becoming particularly effective over Newmarket's four mile Beacon Course, and winning several match races against the leading stayers of the day. After his racing career ended he became a highly successful breeding stallion.

Orville was a bay horse with a white star bred by his owner William Fitzwilliam, 4th Earl Fitzwilliam. He was from the first crop of foals sired by the St Leger winner Beningbrough, who at the time was based at Shipton in Yorkshire. Beningbrough went on to sire the Oaks Stakes winner Briseis and the Doncaster Cup winner Scud, who in turn sired The Derby winners Sailor and Sam. Orville's dam Evelina, also bred by Fitzwilliam, was a half-sister of the St Leger winner Pewett, and went on to produce the successful stallions Cervantes and Paulowitz.

Until 1913 there was no requirement for British racehorses to have official names (two-year-olds were allowed to race unnamed until 1946). The colt who became known as Orville raced unnamed in 1801, being described on his debut as "Ld Fitzwilliam's b.c. by Beningbrough, out of Evelina". At York Racecourse in August, the colt finished fourth of the five runners in a Sweepstakes. On 23 September Lord Fitzwilliam's colt recorded his first success when he won a race over one mile at Doncaster Racecourse in which he started the 4/5 favourite against four opponents.

Orville made his first appearance as a three-year-old at York on 25 August. In a Sweepstakes over a distance of two miles he finished second to Mr Wardell's colt Sir John. Three days later, over the same course and distance he finished second of the four runners in another Sweepstakes, the race being won by the favourite, a colt named Peter.

A month later, Orville was one of seven colts to contest the St Leger Stakes at Doncaster Racecourse. He started at odds of 5/1 with Christopher Wilson's unnamed colt by Young Eclipse being made the 4/5 favourite. Orville's stable companion Sparrowhawk was the second choice in the betting at 5/2. Orville won the race from Pipylin, with Sparrowhawk in third place. Two days later, Orville ran in the weight-for-age Doncaster Cup over a distance of four miles. He finished second of the eight runners behind the four-year-old Alonzo.

Orville failed to win in three starts in 1803. At York in May he finished second to Lennox in a two-mile Sweepstakes. At the same course in August he finished second to Duxbury in a four-mile race and second again when beaten by Mr Mellish's horse Stockton four days later.

Orville began his five-year-old season by winning a two-mile Sweepstakes at York on 29 May. He returned to York in August when he finished last of the five runners behind Haphazard in a four-mile subscription race and second to R Garfoth's horse by Traveller in a similar event two days later. In September at Doncaster Orville won the two mile Free Handicap Sweepstakes and a four-mile match race against Mr Mellish's horse Stockton. In October, Orville was sent south to run at Newmarket where he finished second to Eleanor in a race over the four mile Beacon Course.