It's not straightforward to prevent the original name from existing, though you can play games with File.read() and class_eval, but if you just want it to be av

It's not straightforward to prevent the original name from existing, though you can play games with File.read() and class_eval, but if you just want it to be available under a different name, and don't mind that the old one is there too, you can just do: require 'foo' module MyPreferredNamespace include Foo end