You may stumble into the term "Protestant Buddhism," especially on the Web. If you don't know what that means, don't feel left out. There are lots of people using the term today who don't know what it means, either.
In the context of a lot of current Buddhist criticism, "Protestant Buddhism" appears to refer to a tepid western approximation of Buddhism, practiced mostly by upper-income whites, and characterized by an emphasis on self-improvement and rigidly enforced niceness. But that's not what the term originally meant.