List of significant families in British horse racing

This is a list of male line families (i.e. those families that share a surname) of which at least three members have gained some notability in horse racing in Great Britain.

Arnull

• Sam Arnull, jockey; younger brother of
• John Arnull, jockey; father of
  • Bill Arnull, jockey

Balding

• Gerald Barnard Balding, Sr., father of
  • Toby Balding
  • Ian Balding, father of
    • Clare Balding
    • Andrew Balding

Cannon

• Tom Cannon, Sr., father of
  • Kempton Cannon
  • Mornington Cannon
  • Tom Cannon, Jr.
  • Charles Cannon

Carson

• Willie Carson, and descendants

Chifney

• Samuel Chifney, Sr. (1753-1807), jockey; father of
  • William Chifney, trainer,
  • Samuel Chifney, Jr. (b. 1786), jockey

Day

• John Day, trainer, father of
  • John Barham Day (1793-1860), jockey and trainer, father of
    • Sam Day, Jr. (1818-1838), jockey
    • John Day, Jr. (1819-1883), jockey and trainer, grandfather of Mornington, Kempton, Tom Jr. and Charles Cannon; great-grandfather of Keith Piggott
    • William Day (1823-1908), trainer, father of
      • Alfred Day, founder of Fontwell Racecourse
    • Alfred Day (1830-1868), jockey
  • Sam Day (1801-1866), jockey

Hannon

• Harry Hannon, trainer; father of
  • Richard Hannon Sr. (born 1945), four times British flat racing Champion Trainer; father of
    • Richard Hannon Jr. (born 1975), trainer

Hastings

• Aubrey Hastings, trainer; father of
  • Peter Hastings-Bass (1920-1964), trainer; grandfather of Andrew Balding and Clare Balding; father of
    • William Hastings-Bass, 17th Earl of Huntingdon (born 1948), trainer

Hills

• Barry Hills, trainer; father of
  • Michael Hills, jockey
  • Richard Hills, jockey
  • Charlie Hills, trainer
  • John Hills, trainer

Moore

• George Moore, trainer; father of
  • Gary Moore, trainer; father of
    • Ryan Moore, jockey
    • Jamie Moore, jockey
    • Joshua Moore, jockey

Piggott

• Ernest Piggott, father of
  • Keith Piggott, father of
    • Lester Piggott

Scudamore

• Michael Scudamore, father of
  • Peter Scudamore, eight time British jump racing Champion Jockey; partner of Lucinda Russell, and father of
    • Michael Scudamore, Jr., trainer
    • Tom Scudamore, jockey

Singleton

• John Singleton the Elder, (1715-c.1795), first rider to Lord Rockingham between 1760 and 1780; uncle of

• John Singleton the Younger, also rider to Lord Rockingham and winner of the first running of the St. Leger Stakes in 1776; father of

• John Singleton, Jr., who rode the winner of the 1797 Derby

Tinkler

• Colin Tinkler Sr (1927-2016), trainer, father of
  • Colin Tinkler Jr (b 1954), jockey and trainer, father of
    • Andrew Tinkler (b 1985), jockey
    • Nicky Tinkler, amateur jockey
  • Nigel Tinkler (b 1958), jockey and trainer