Harvey Murray Glatman (December 10, 1927 – September 18, 1959) was an American serial killer active during the late 1950s. He was known in the media as "The Lonely Hearts Killer" and "The Glamour Girl Slayer". He would use several pseudonyms, posing as a professional photographer to lure his victims with the promise of a modelling career.

Born in the Bronx to a Jewish family and raised in Colorado, Glatman exhibited antisocial behavior and sadomasochistic sexual tendencies from an early age. When he was twelve years old, his parents noticed that he had a red, swollen neck. He described having been in the bathtub, placing a rope around his neck, running it through the tub drain, and pulling it tight against his neck, "achieving some kind of sexual pleasure from this act." His mother took him to the family physician and was told he "would grow out of it."

Glatman: "The reason I killed those girls was 'cause they asked me to. (pause) They did; all of them."
Sgt. Friday: "They asked you to."
Glatman: "Sure. They said they'd rather be dead than be with me."