A black witch is a practitioner of black magic.

Black witch or Black Witch may also refer to:

• Ascalapha odorata, a moth species commonly named "black witch"
• Trichocladus crinitus, a shrub species commonly named "black witch-hazel"

• Black Witch (comics), a DC Comics character
• Black Witch, the antagonist of the video game Blade the Warrior
• Black Witch, an antagonist in the film series Fantaghirò
• Black Witch, the antagonist of the film The Magic Door
• Morgan LaFey, epithetized the "Black Witch", an antagonist in the novel series Grey Griffins
• Lina Inverse, nicknamed the "Raven-Black Witch", the protagonist of the light novel series Slayers

• The Black Witch, a 2017 novel by Laurie Forest
• Black Witch II, a tugboat and training ship of the Royal Australian Navy
• "The Black Witch", an episode of the television series The Man in Room 17

• Black Witchery, an American blackened black metal band