Clive Brittain (born 15 December 1934) is a retired British race-horse trainer. He started in racing as an apprentice in 1949, and became a licensed trainer from 1972 after working for Noel Murless. He trained at Carlburg Stables in Newmarket, Suffolk and sent out his final runner prior to retirement in October 2015.^[1] His best-known horse is Pebbles, winner of the 1,000 Guineas in 1984 and the Breeders' Cup Turf in 1985.

Great Britain

• 1,000 Guineas – (2) – Pebbles (1984), Sayyedati (1993)
• 2,000 Guineas – (1) – Mystiko (1991)
• Champion Stakes – (1) – Pebbles (1985)
• Cheveley Park Stakes – (1) – Sayyedati (1992)
• Coronation Cup – (2) – Warrsan (2003, 2004)
• Coronation Stakes – (2) – Crimplene (2000), Rizeena (2014)
• Eclipse Stakes – (1) – Pebbles (1985)
• Falmouth Stakes – (2) – Gussy Marlowe (1992), Rajeem (2006)
• Fillies' Mile – (3) – Ivanka (1992), Teggiano (1999), Hibaayeb (2009)
• International Stakes – (1) – Terimon (1991)
• Nassau Stakes – (1) – Crimplene (2000)
• Oaks – (1) – User Friendly (1992)
• Queen Anne Stakes – (3) – Radetzky (1978), Sikeston (1991), Alflora (1993)
• Queen Elizabeth II Stakes – (1) – Air Express (1997)
• St. James's Palace Stakes – (2) – Averof (1974), Radetzky (1976)
• St. Leger – (2) – Julio Mariner (1978), User Friendly (1992)
• Sun Chariot Stakes – (1) – Warning Shadows (1995)
• Sussex Stakes – (1) – Sayyedati (1995)
• Yorkshire Oaks – (1) – User Friendly (1992)

France

• Grand Prix de Saint-Cloud – (1) – User Friendly (1993)
• Prix de l'Abbaye de Longchamp – (1) – Var (2004)
• Prix Jacques Le Marois – (1) – Sayyedati (1993)
• Prix Jean Prat – (1) – Lapierre (1988)

Germany

• Deutschland-Preis – (1) – Luso (1997)
• Grosser Preis von Baden – (2) – Warrsan (2004, 2005)
• Rheinland-Pokal – (2) – Luso (1996, 1998)

Hong Kong

• Hong Kong Vase – (2) – Luso (1996, 1997)

Ireland

• Irish 1,000 Guineas – (1) – Crimplene (2000)
• Irish Oaks – (1) – User Friendly (1992)
• Moyglare Stud Stakes – (2) – Sayyedati (1992), Rizeena (2013)
• Pretty Polly Stakes – (1) – Game Plan (1990)

Italy

• Derby Italiano – (2) – Hailsham (1991), Luso (1995)
• Oaks d'Italia – (1) – Menhoubah (2004)
• Premio Parioli – (1) – Air Express (1997)
• Premio Presidente della Repubblica – (2) – Sikeston (1991, 1992)
• Premio Regina Elena – (1) – Love of Dubai (2008)
• Premio Roma – (1) – Sikeston (1991)
• Premio Vittorio di Capua – (2) – Sikeston (1990, 1991)

Japan

• Japan Cup – (1) – Jupiter Island (1986)

United States

• Breeders' Cup Turf – (1) – Pebbles (1985)

• Clive Brittain at BritishHorseRacing.com
• Clive Brittain at NationalThoroughbredRacingAssociation.com