Are Clydesdale the biggest horses in the world?

I’m from St. Louis and have seen them a number of times. I do know that St. Louis has the largest number of Clydesdale. Just wondering if they are the biggest breed of horses?

Actually, of the Draft Horses, Clydesdale’s are the smallest. The largest horses are the Shire Draft horses at an average 17 hands and the weight, just shy of one ton.