Niels Ebbesen Mortensen Bukh was a Danish gymnast and educator who founded the first athletic folk high school in Ollerup in Funen, Denmark. He achieved international fame as a gymnastics trainer for the Danish team at the Olympic Games in Stockholm in 1912. He was inspired by the rhythmic female gymnastics of the Finnish gymnastics educator Elli Björkstén(1870–1947) and the medical gymnastics of Kaare Theilmann.