Jonjo O'Neill (jockey)

John Joseph "Jonjo" O'Neill is an Irish National Hunt racehorse trainer and former jockey. He is a native of Castletownroche, County Cork in Ireland. Based at the Jackdaws Castle training establishment in England. O'Neill twice won the British Champion Jockey title and won the Cheltenham Gold Cup on the mare, Dawn Run who became the only horse to complete the double of winning the Champion Hurdle and the Gold Cup at the Cheltenham Festival. He won 900 races as a jockey. ^{Jonjo O'Neill, Irish jockey and trainer}

13 April 1952

Born on the same birth date (13 April 1952): Gabrielle Gourdeau

Born on the same birth day (13 April): Arthur Matthew Weld Downing • Col Joye • Jon Stone • Kermit Tyler • Liam Cosgrave • Lou Bega • Madalyn Murray O'Hair • Marguerite Henry • Mike Chapman • Paul Sorvino • Quentin Richardson • Sorcha Boru • Stanley Donen

Born in the same month (April 1952): Geraldine Doogue • Leon Wilkeson • Marilu Henner • Mitch Pileggi • Pierre Guité • Udo Dirkschneider