Hash

Hash may refer to:

Number sign, #, also called the pound sign
Hashish, a psychoactive drug derived from the Cannabis sativa plant
- Hash Bash, an annual event in Ann Arbor, Michigan
Hash (food), a coarse, chunky mixture of beef and other things, e.g. corned beef hash; cf. Hash brown
Hash House Harriers, a drinking club with a running problem
Hash function, a small digital "fingerprint" from any kind of data
- Cryptographic hash function, a hash function suitable for use in information security
- Hash table, a data structure associating keys with values using a hash function
- Associative array, an abstract data type often implemented as a hash table
- Geometric hashing, a method for efficiently finding geometric objects of the same or similar shape
Hash, Inc., purveyors of fine 3D character animation software since 1987