I know C# and Java do. Anyone else know of any others?
Strictly speaking, JIT is a property of the runtime, not the language. Pedantic point, but the implication is that any language that runs on a JVM for example can take advantage of the JVM's JIT. Jython, JRuby, Groovy, etc.
Tamarin has a JIT too. I think this can run JavaScript and ActionScript? Not positive...