AWK Lisp
AWK Lisp is a A Common Lisp interpreter implemented in Awk and written by Roger Rohrbach. It provides intrinsic versions of the basic functions on s-expressions (s-exp syntax) , and many others written in LISP.

The interpreter has thirteen built-in functions: car, cdr, cons, eq, atom, set, eval, error, quote, cond, and, or, list. These include the five elementary functions on s-expressions defined by McCarthy; some conditional expression operators; an assignment operator, and some functions to control the evaluation process.

Homepage: AWK Lisp: Lisp implemented in AWK

References: Common Lisp Implementations - The ALU Website