''Nightmare'' may refer to:

* Actual [[https://en.wikipedia.org/wiki/Nightmare nightmares]], for which we have several tropes listed under DreamTropes (the most general of which are PastExperienceNightmare and NightmareSequence).
* ''{{Fanfic/Nightmare}}'', a fanfic.
* ''{{Film/Nightmare}}'', a SlasherMovie released in 1981.
* ''{{Film/Nightmares}}'' is a 1983 horror anthology film directed by Creator/JosephSargent.
* ''{{VideoGame/Nightmare}}'', a horror RPG made in UsefulNotes/RPGMaker (and unrelated to the aforementioned movie).

Please change any link to point to the correct page.
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