The term Eastern Prince is used to refer to four different titles of nobility in the Middle East and South Asia. The first title is Emeer, which is a title of nobility used in some Arab countries. The second title is EMIR, which is a title of nobility used in some Islamic countries. The third title is Rajah, which is a title of nobility used in some South Asian countries. The fourth title is Raja, which is a title of nobility used in some South Asian countries. All four titles are used to refer to a ruler or prince in their respective regions.