I learned BASIC, 6502 Assembler, Pascal, 68000 Assembler, Modula-2, MATLAB, Logo, Fortran, DCL, Scheme, Ada, Prolog, CSP, VDM, Occam, HyperScript, Redcode, and the binary language of moisture 'vaporators before I left University.
Commercially I've been paid for programming in C, Bash, Hitachi DSP assembler, Make, SQL, PL/SQL, Pro*C, Visual C++, Visual Basic, COBOL, C++, Java, Perl, TCL, Python, Objective-C, Scala, Smalltalk, C#, JavaScript, CoffeeScript, LiveScript, Go, Ruby, LISP (Sibilant) and most recently Clojure.
For fun I've dabbled in Emacs LISP, NewtonScript, Forth, Io, Dart, PureScript, Erlang, Ki, Haskell, Lua, Elixir and Elm.