Paul Oskar Höcker (17 December 1865 – 6 May 1944) was a German editor and author, who also wrote under the pseudonym Heinz Grevenstett.

In the beginning of the twentieth century he wrote a number of Leatherstocking Tales for children in the vein of James Fenimore Cooper, and attracted attention in the United States; The Pittsburg Press, in a short biographical article published in 1905, describes him as the author of "delightfully humorous stories.

Drei Monate Kriegserlebnisse (Berlin: 1919), which drew attention in the US: The New York Times praised the "admirable pen-pictures of life at the front" by "one of Germany's most popular writers";[2] the paper also reported on other adventures by Höcker at the front, translating and printing his letters detailing war experiences.

After the Nazi Party came to power, he was one of the 88 German authors who signed the Gelöbnis treuester Gefolgschaft, in which the undersigned promised their "most loyal obedience" to Adolf Hitler.

[4] This did not hinder Nazi authorities to take a dismissing view of "nationalist kitsch from the feathers of the Gleichschaltarios, opportunists and fellow travelers who are watering down the National Revolution (of the likes of Paul Oskar Höcker)".