Catholic Pope vs Roman Catholic Pope

Catholic Pope and Roman Catholic Pope both are nouns.

Word	Noun	Adjective	Verb	Adverb
Catholic Pope	Yes	No	No	No
Roman Catholic Pope	Yes	No	No	No

As nouns, Catholic Pope and Roman Catholic Pope are synonyms defined as:

Catholic Pope and Roman Catholic Pope: the head of the Roman Catholic Church

Other synonyms of Catholic Pope include Bishop of Rome, Holy Father, pontiff, pope, Vicar of Christ.

Catholic Pope (noun)	Roman Catholic Pope (noun)
the head of the Roman Catholic Church	the head of the Roman Catholic Church