Sir Tristram (IRE) (7 April 1971 – 21 May 1997) was an Irish-bred Thoroughbred racehorse who stood at stud in New Zealand, where he sired an extraordinary 45 Group One winners, including three Melbourne Cup winners. His progeny earned him 17 official Leading Australasian sire premierships, plus nine broodmare sire titles.
|Sire||Sir Ivor (USA)|
|Damsire||Round Table (USA)|
|Foaled||7 April 1971|
|Died||21 May 1997(aged 26)|
|Owner||1) Raymond R. Guest|
2) Sir Patrick Hogan (at stud)
|Trainer||1) Clive Brittain|
2) Charles G. Milbank (USA)
|Prix de Saint-Pierre Azif|
Prix de Tire Gerbe
|1984–87, 1988–90 Leading sire in Australia|
Leading Broodmare Sire in Australia
1986/7 Leading Sire of New Zealand
|New Zealand Racing Hall of Fame (2008)|
|Last updated on 22 October 2011|
Trained by Charles Milbank
and raced in Ireland, England and France, owner Raymond Guest sent Sir Tristram to Churchill Downs in Louisville, Kentucky to compete in the 1974 Kentucky Derby. Under jockey Bill Hartack, the colt finished eleventh. 
Following his racing career, he was purchased by Sir Patrick Hogan of Cambridge Stud in New Zealand, and entered stud in 1976 at the modest stud fee of $1,200. By the time of his death in August 1997, his fee had risen to $200,000. 'Paddy', as he was affectionately known, had a reputation as a difficult horse to handle, although this is not a trait which seems to have been inherited by his progeny. In fact, he was so difficult that his handler was forced to wear protective gear, which remains on display at Cambridge Stud. Sir Tristram is the sire of over 140 stakes winners, including the Melbourne Cup winners Gurner's Lane (1982), Empire Rose (1988), and Brew (2000). He is also the broodmare sire of over 200 stakes winners, including the Melbourne Cup winners Saintly and Ethereal, and has earned himself a reputation as a sire of sires. His sire sons include Zabeel (who stood at Cambridge Stud at a fee of NZD$100,000), Marauding, Dr Grace and Grosvenor.
Whilst he was known as a sire of stayers, Sir Tristram's progeny and further descendants have excelled over a wide range of distances. As well as siring winners of the Melbourne Cup (the world's richest handicap – over 3,200 metres), Sir Tristram sired Marauding, who won a Golden Slipper (the world's richest two-year-old race – over 1,200 metres), and several other outstanding two-year-olds. During 1984 to 1987 and 1988 to 1990 he was the Leading sire in Australia, Leading Broodmare Sire in Australia and in 1986/7 the Leading Sire of New Zealand.
Sir Tristram's 45 Group 1 winners:
Sir Ivor (USA)
|Sir Gaylord (USA)
|Royal Charger (GB)|
|Source Sucree (Fr)|
|Round Table (USA)
|Prince Rose (GB)|
|Knight's Daughter (GB)
|Sir Cosmo (Ire)|
|All My Eye (GB)
|My Babu (Fr)
|All Moonshine (GB)
|Selene (GB) (Family: 6-e)|
- Lichter, Barry (25 May 1997). "Patrick's ride of lifetime". Sunday Star Times. p. 12.
- NZ Blood-horse Ltd, Register of Thoroughbred Stallions of New Zealand, Vol. IX, May 1976
- Cambridge Stud Stallions 2010
- Peters, Anne. "Leading Sires of Australia". Thoroughbred Heritage. Thoroughbred Heritage. Retrieved 22 October 2011.
- SMH – Two Gallipolis: legend and facts Retrieved on 30 May 2009
- Cambridge Stud Retrieved on 30 May 2009
- Morris, Simon; Tesio Power 2000 – Stallions of the World, Syntax Software