{{language|Ol (Otus Lisp)
|exec=both
|parampass=both
|safety=safe
|strength=strong
|express=implicit
|checking=dynamic
|gc=yes
|LCT=no
|site=http://yuriy-chumak.github.io/ol/}}
[[Category:Lisp Implementations]]
[[Category:Scheme Implementations]]

{{language programming paradigm|functional}}
Ol (Otus Lisp) is a purely* functional dialect of [[derived from::Lisp]].

It implements an extended subset of [http://www.schemers.org/Documents/Standards/R5RS/ R<sup>5</sup>RS] ([http://www.r7rs.org R<sup>7</sup>RS] from version 2.0) Scheme including, but not limited to, some of the [http://srfi.schemers.org/ SRFI]s, open source / free software, with a permissive license.

It is small (approx 42kb virtual machine size), embeddable and crossplatform (x86/64, aarch64, arm, powerpc, mips32/64; GNU/Linux, Windows, Unix and *BSDs, Android, webOS, Minoca, Odroid, LattePanda; Web in asm.js form).

Builds and source codes can be found at project [https://yuriy-chumak.github.io/ol/ home page] or [https://github.com/yuriy-chumak/ol Github].

{{implementation|Lisp}}
{{implementation|Scheme}}