There are a number of uses for the word blank
- the URL interpreted by most web browsers as the command to display a blank HTML document
- Blank (cartridge) a type of gun cartridge that contains gunpowder but no bullet or shot.
- Key blank, an uncut key
- Blank (solution), a solution containing no analyte, typically used to zero an analytical instrument and ensure that any reagents used do not contribute to overall measurements
- Blank (archeology) a thick, shaped stone biface of suitable size and configuration for refining into a stone tool
- Blank (Scrabble) a Scrabble tile that does not have a letter on it and can be substituted for any letter the player desires
- Blank (computer science) another name for the space character (SP)
- A cultural subgroup seeking anonynmity in a database society, from the TV series Max Headroom.
- "Blank", a song by Eyehategod from the album Take as Needed for Pain
- See also Blank (surname)