Barclay Tagg is an American horse trainer known for his success in thoroughbred racing. He gained prominence in the early 2000s and is particularly recognized for training the racehorse Funny Cide, who won the 2003 Kentucky Derby and Preakness Stakes. Tagg's training style emphasizes the well-being of the horses, focusing on their physical and mental health. Throughout his career, Tagg has trained numerous horses, achieving significant victories in various prestigious races. His dedication to the sport and his horses has earned him respect within the racing community. Tagg continues to be an influential figure in thoroughbred racing today.