The current (2014) pope, elected in 2013 is Pope Francis.
As of March 2013 the pope of the worldwide Catholic Church is Pope Francis.
There is no worldwide leader of Islam.
Pope
The Black Pope's birth name is Shelly Pope.
Since Pope Francis is the first and only pope by that name, there is no need for a number after his name. If a pope in the future also decides to take the name Francis, he will become Pope Francis II and then the original Pope Francis will become Pope Francis I.
Eddie Pope's birth name is George Edward Pope.
Pope Urban chose the name upon his election as pope.
Dennis Pope's birth name is Dennis Allen Pope.
Edwin Pope's birth name is John Edwin Pope.
Everett Pope's birth name is Everett Parker Pope.
Katherine Pope's birth name is Katherine Collins Pope.
Marquez Pope's birth name is Marquez Phillips Pope.