David Wachman (born 5 July 1971) is a retired Irish racehorse trainer who specialised in flat racing. Before taking out his own licence to train horses, Wachman worked for trainers in Ireland (Jessica Harrington, Michael Hourigan and Jim Bolger), Australia (Bill Mitchell and Brian Mayfield Smith) and England (Jenny Pitman). He began training near Carrick-on-Suir at the age of 25 with runners in point-to-point races and had his first winner in 1996 with Middle Mogs in a hurdle race at Clonmel, followed by his first flat race winner in June 1997 with Clewbay Pearl at Cork.