Norman W. Kingsley (October 26, 1829 - February 20, 1913) was a dentist and an artist in 19th Century. He was a major contributor in the early development of orthodontic treatments and cleft palate therapy. He designed fixed and removable inclined planes to correct Angle Class II malocclusions. He also designed the first soft-rubber palatal obturators, which enabled patients with cleft palate to enjoy normal speech and function.