Quick answer
Emrys is a boy name.
Meaning and history
Welsh form of Ambrose. Emrys Wledig (or Ambrosius Aurelianus) was a Romano-British military leader who fought against the invading Anglo-Saxons in the 5th century. Tales of his life were used by the 12th-century chronicler Geoffrey of Monmouth to help shape the early character of Merlin, whom he called Merlinus Ambrosius in Latin.
Notes and context
Usage: welsh