Agloe was originally a fictional hamlet in Colchester, Delaware County, New York, United States, that became an actual landmark after mapmakers made up the community as a phantom settlement, an example of a fictitious entry similar to a trap street, added to the map to catch plagiarism.

Agloe is also known for its role in the American romantic mystery novel Paper Towns by John Green and its film adaptation, as well as The Cartographers by Peng Shepherd.

In the 1920s, General Drafting founder Otto G. Lindberg and an assistant, Ernest Alpers, assigned an anagram of their initials to a dirt-road intersection in the Catskill Mountains: NY 206 and Morton Hill Road, north of Roscoe, New York.

[6] The United States Geological Survey added "Agloe (Not Official)" to the Geographic Names Information System database on February 25, 2014.

During the film and in the novel, one of the main characters, Margo, runs away from home, leaving personal clues to her friend and neighbor Quentin of where she has gone.