The Pope wears a zucchetto, while the rabbi wears a yarmulke. They may be indistinguishable hats, but the names are different.
The pope does not wear a yamaka, he wears a white zucchetto. A Zucchetto is a small round skullcape worn by all prelates in the Catholic Church; white for the pope, red for cardinals, purpose for bishops, and black for abbots. Other priests may also wear a black zucchetto.
Roman Catholic AnswerI'm going to step out on a limb here and assume that you're asking if Catholics wear skull caps. The answer is yes, for priests and bishops. It is called a zucchetto, a small round skullcap and it is different colors depending on who is wearing it: The Holy Father wears a white zucchetto, Cardinals wear a red zucchetto, and there is a ceremony when the Holy Father creates Cardinal in which he personally gives them their zucchetto. Purple is for bishops and some Monsignors, and black is for abbots (the ruler of a monastery), although I have seen some priests wearing a black zucchetto as well.
Some priests choose to wear the black zucchetto, bishops wear a fuchsia(pinkish purple) one, cardinals wear a red one. And finally the pope wears a white one. Note: Some religious orders wear one,also only men can wear it. Did you know at the Institute of Christ the King the clerics there either wear a black one or a light blue one?
A priests skull cap is called a "Zuchetto". Another name for it is a "Callote". Ref: www.myfreedictionary.com
The tall and pointed head gear is called a mitre while the small 'beanie-like' cap he wears on the back of his head is called a zucchetto.
The Pope's ordinary clothing is a white cassock with attached pellegrina, a fringed white fascia belt, red papal shoes, and a white zucchetto. The Pope wears several additional ornaments for formal occasions such as the triregnum crown.
The zucchetto is removed at the commencement of the Preface and replaced at the conclusion of the Communion.
They don't, Catholic Cardinals wear a cardinal red zucchetto - which looks an awful lot like a "skull cap" but isn't. Actually, all clerics may wear a zucchetto, priests wear black, bishops wear purple or violet, Cardinals wear red, and the Holy Father wears white.
Popes customarily wear a white zucchetto and that included Pope John XXIII.
A Catholic Archbishop wears exactly the same thing as a Bishop, his house/street cassock would be black with purple piping and his choir cassock would be purple. His zucchetto would be purple as well.
Biretta or, in some rare cases, a zucchetto may be worn. However, the zucchetto is more commonly worn by a bishop or cardinal.