Meaning and Name Origin
Emrys \e-mr-ys, em-rys\ as a boys' name is of Welsh and Greek origin, and the meaning of Emrys is "immortal". The Welsh version of Ambrose. In Welsh tradition, Ambrosius Aurelianus (fifth century), military leader and uncle to King Arthur, is also known as Emrys Wledig. Merlin is also sometimes known as Merlin Emrys.
Emrys is an unusual given name for males and an equally uncommon last name for both adults and children. (2000 U.S. Census)
Below is a graphed analysis of the usage of Emrys and associated names. The only popular variation form of Emrys (#unlisted) is Ambrose. Adoption of this boy name reached its most widespread during 1880-1889 and has become significantly lower since, with the form Ambrose becoming less stylish. (Top 1000 Baby Names Records, 2014)
A recommended similar baby name is Emerus. Like Emrys, this name is not frequently used.