Hash
Hash, hashes, hash mark, or hashing may refer to:

Substances
Hash (food), a coarse mixture of ingredients
Hash (stew), a pork and onion-based gravy found in South Carolina
Hash, a nickname for hashish, a cannabis product

Hash mark
Hash mark (sports), a marking on hockey rinks and gridiron football fields
Hatch mark, a form of mathematical notation
Number sign (#), also known as the hash, hash mark, or (in American English) pound sign
Service stripe, a military and paramilitary decoration
Tally mark, a counting notation
Checkmate symbol in chess

Computing
Hash function, an encoding of data into a small, fixed size; used in hash tables and cryptography
Hash table, a data structure using hash functions
Cryptographic hash function, a hash function used to authenticate message integrity
URI fragment, in computer hypertext, a string of characters that refers to a subordinate resource
Geohash, a spatial data structure which subdivides space into buckets of grid shape
Hashtag, a form of metadata often used on social networking websites
hash (Unix), an operating system command
Hash chain, a method of producing many one-time keys from a single key or password
Password hash
Zobrist hashing, a method of hashing chess positions into a key
Hashgraph, a Distributed ledger technology.

Other uses
Hash House Harriers, a running club
Hash (EP) ([#]), a 2020 EP by Loona

See also
Hash browns
Hash House (disambiguation)
All pages with titles beginning with Hash
All pages with titles containing Hash