The following short stories are Locke & Key comics that are not a part of the official arcs and are considered standalone issues.
|Locke & Key: In the Can||January 1, 2009|
|Locke & Key: Grindhouse||August 29, 2012|
|Locke & Key: Nailed It||July 19, 2019|
|Locke & Key: Dog Days||November 6, 2019|
- For a while many fans assumed that "Grindhouse" and "Dog Days" were a part of the Golden Age arc, until Joe Hill stated via Twitter that they were not a part of Golden Age nor any of the other arcs.
- "Locke & Key: Nailed It" had a limited original publication. It was only available at the 2019 San Diego Comic-Con during the Locke & Key panel which took place on July 19, 2019. Only two variants were made. The first was a Con variant whose Cover Art featured the Locke & Key logo; only 1000 of these were printed. The other was a Deluxe Con variant with Premium Cover Art which didn't have the logo; only 500 of these were printed.