Smallest waist ever recorded was 13 inches
The smallest waist of a person with normal height was recorded on Ethel Granger from UK, who reduced her waist from 22 inches to 13 inches from 1929-1939. Cathie Jung of USA, who stands at 5 feet 8 inches, currently has the smallest waist, with measurements of 15 inches in a corset and 21 inches normally.