Auden is an English surname, a variation of
Alden, which goes back to either the Anglo-Scandinavian name Healfdene or the Old English name Ealdwine, according to Reaney &
Wilson's
A Dictionary of English Surnames.
Aniston is a modern American surname created by either the grandfather or father (reports vary) of the actress
Jennifer Aniston as an "Americanization" of the Greek surname Anastassakis. It was a spelling alteration of Anniston, the name of a city in Alabama. That city was founded in the 19th century and named after a woman called
Annie, so its meaning, if any, is "
Annie's town."