Derby renamed Pride Park for a bit then went back to it. All Hull fans still call theirs the KC, even though KC became KCOM, then they changed sponsor. Cov fans will always call the Ricoh that because it was it's first name even though it was a sponsor, similar with the McAlpine at Huddersfield.
Valley Parade seems to get a new name every season or two, but nobody calls it that. The Vitality Stadium seems to be one of the only sponsored names on an old ground that people use but that's mostly because nobody cares enough about Bournemouth to call it Dean Court.