Haldan Keffer Hartline (December 22, 1903 – March 17, 1983) was an American physiologist who was a co-recipient (with George Wald and Ragnar Granit) of the 1967 Nobel Prize in Physiology or Medicine for his work in analyzing the neurophysiological mechanisms of vision.

Brian Jack Hartline (born November 22, 1986) is an American football coach and former wide receiver who is the co-offensive coordinator and wide receivers coach at Ohio State.

Mary Pauline Hartline (October 29, 1927 – August 12, 2020) was an American model and actress who became one of television's early stars.