A lisp is a type of speech impediment.
Lisp or LISP may also refer to:
Computing Lisp (programming language), a family of computer programming languages Locator/Identifier Separation Protocol, a "map-and-encapsulate" Internet protocol
Other uses Lisp (band), an English trip hop band Lisp (group), the Japanese girl group Light Industry and Science Park, a series of industrial parks in the Philippines
See also Lisp Machines, a company that built Lisp machines out of MIT Lisp machine, general-purpose computers designed to efficiently run Lisp Rhotacism (speech impediment), 'lisp' on the letter R