In Scala, how do I get the *name* of an `object` (not an instance of a class)?

Just get the class object and then its name.

scala> Thingy.getClass.getName
res1: java.lang.String = Thingy$

All that's left is to remove the $.

EDIT:

To remove names of enclosing objects and the tailing $ it is sufficient to do

res1.split("\\$").last

If you declare it as a case object rather than just an object then it'll automatically extend the Product trait and you can call the productPrefix method to get the object's name:

scala> case object Thingy
defined module Thingy

scala> Thingy.productPrefix
res4: java.lang.String = Thingy