Haskell

Haskell is a computer programming language. In particular, it is a  polymorphically statically typed, lazy, purely functional  language, quite different from most other programming languages. The language is named for Haskell Brooks Curry, whose work in mathematical logic serves as a foundation for functional languages. Haskell is based on the lambda calculus, hence the lambda we use as a logo.

>>19
The Haskell runtime/stdlib is big, that's why. Currently the default compilation mode is to link it statically, because GHC has issues with shared libs on some platforms (they're working on it).

At least it's smaller than Java's 90MB standard library.