Currently developed Lisp dialects that have a standard specification:
- Common Lisp - Common Lisp is a standardized Lisp dialect standardized by ANSI as ANSI INCITS 226-1994 (R2004) in 1994
- Dylan - Dylan is a standardized Lisp dialect with an infix syntax, with a scope and size similar to Common Lisp
- ISLisp - ISLisp is a standardized Lisp dialect defined by ISO/IEC 13816:2007(E) that attempts to standardize on features common to Common Lisp, EuLisp, Le Lisp, and Scheme
- Scheme - Scheme is a popular standardized Lisp dialect initially developed by Guy L Steele and Gerald Jay Sussman in 1975
Currently developed Lisp dialects that are implementation-defined:
- AutoLISP - AutoLISP is a Lisp dialect used as an extension language for the popular Autodesk AutoCAD software
- Clojure - Clojure is a purely functional Lisp dialect with a strong focus on concurrency primitives
- Egison - Egison is a Lisp dialect with a strong focus on pattern-matching
- Emacs Lisp - Emacs Lisp is the Lisp dialect used in the GNU Emacs and XEmacs text editors
- JazzScheme - JazzScheme is a Lisp dialect with its own IDE and GUI toolkit that resembles a cross between Scheme and Java
- LFE - LFE is a Lisp dialect implemented on the Erlang VM
- Lush - Lush (Lisp Universal SHell) is a Lisp dialect that features tight integration with C and bindings to a lot of numeric and linear algebra libraries
- newLISP - newLISP is a dynamically-scoped Lisp dialect with a very compact and portable implementation
- Oaklisp - Oaklisp is a Lisp dialect that combines Scheme, OO, and first-class classes
- Racket - Racket is a Lisp dialect descended from Scheme with a canonical implementation, IDE and set of standard libraries
Historic Lisp dialects:
- Interlisp - Interlisp was a "West Coast" historic Lisp dialect and development environment descended from LISP 1.5
- Le Lisp - Le Lisp is a historic Lisp dialect designed by Jérôme Chailloux and Emmanuel St
- LISP 1.0 - LISP 1.0 was the first version of Lisp, the earliest in the family of Lisp dialects
- LISP 1.5 - LISP 1.5 was the first widely used language in the family of Lisp dialects
- LispKit - Lispkit is a lexically scoped, purely functional historic Lisp dialect that was developed as a testbed for functional programming concepts
- MACLISP - MACLISP was the successor of LISP 1.5 at MIT and the predecessor of ZetaLisp
- Portable Standard Lisp - Portable Standard Lisp is a historic Lisp dialect that was developed at Stanford and the University of Utah from the late 1960s to the 1980s
- Small Lisp - Small Lisp is a historic Lisp dialect that was used for the example code in RD Cameron and AH Dixon's Symbolic Computing with Lisp
- VLISP - VLISP is a historic Lisp dialect that was developed in University of Paris VIII - Vincennes starting in 1971
- XLisp - XLisp is the name for several historic Lisp dialects developed by David Betz that was popular for small microcomputers in the 1980s and 1990s
- ZetaLisp - ZetaLisp (also known as Lisp Machine Lisp) is a historic Lisp dialect that was mainly used on Lisp Machines