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Flask (metal casting), a containing frame without a top or bottom, with sides only, used to hold molding sand •
Flask (web framework), a web framework for the Python programming language •
Powder flask, a small container for gunpowder •
FLASK, the Flux Advanced Security Kernel, an operating system security architecture •
Flask (unit), a unit used in UK avoirdupois weight to measure the element mercury •
The Flask, Hampstead, a Grade II listed public house at 14 Flask Walk, Hampstead, London •
The Flask, Highgate, a Grade II listed public house at 74–76 Highgate West Hill, Highgate, London •
Flask Walk, a street in Hampstead, London ==See also==