Hemlock Hoax, the Detective is an American short comedy film produced and distributed in 1910 by the Lubin Manufacturing Company. The silent film features a detective named Hemlock Hoax who tries to solve a murder, which unbeknownst to him is a practical joke being played on him by two young boys. It was one of many shorts designed to derive its humor from a sleuth whose name was similar to Sherlock Holmes.

The character of Hemlock Hoax was based on a minor character from a film story that had been rejected. The finished film was released in April as a split reel, being presented with two other Lubin comedies. The black-and-white short received positive reviews with several journalists praising the film's humor. It is unclear whether there is a surviving print of the film, and the identities of the film's cast and crew are not recorded.