John Mangle (1751–1831) was an English flat racing jockey and trainer, who was five time winning rider in the St Leger Stakes.
He served his riding apprenticeship with Isaac Cape in Middleham, North Yorkshire, before joining John Hoyle's stable.
He went on to both train and ride the winners of three consecutive St Legers – Paragon in 1786, Spadille in 1787 and Young Flora in 1788, all for Lord Archibald Hamilton.
[3] Blindness forced him to retire from training[4] and he died at Middleham on 1 January 1831.
[2] Great Britain This English horse racing biographical article is a stub.