Language ExtC# functional language extensions - a base class library for functional programming
illeducational compiler for not (quite) toy languages
yonaYona is a modern take on a dynamic general-purpose programming language with advanced functional programming, minimalistic ML-like syntax, strict evaluation, for GraalVM polyglot virtual machine (VM).
lambdacube-compilerLambdaCube 3D is a Haskell-like purely functional language for GPU. Try it out:
CoreLangCode from/to the book S.L.Peyton Jones, D.Lester: Implementing Functional Languages. A Tutorial, 1992
charmA [ functional stack ] based language.