As a former bookseller, the oft-heard phrase ISBN number sent an irksome chill up my spine.* As a former bookseller, I was often grumped upon overhearing the phrase ISBN number. Now I have a word for that bugbear:

Redundonym: the use of an acronym followed by a word that is actually a part of the acronym. Examples include ATM machine, GRE exam, HIV virus, PIN number, and UPS service.
Got any to add to the list?
Apparently SAT test is exempt:
A former redundonym, SAT test, however, is no longer a redundonym. In 1997 the College Board, the company that administers the exam, announced that "SAT is not an initialism… The SAT has become the trademark; it doesn't stand for anything."
from The Copyeditor's Handbook by Amy Einsohn
*Commenter JME wins the Find the Hidden Grammatical Error Prize!