From Britain or Brittany
A modern phonetic spelling variant of Brittany. It originally referred to people from the region of Brittany in France or the island of Britain, derived from the Roman name Britannia.
Less common today
Brittnay isn't in the latest US Top 1000. It last peaked at #1,087 in 1990.
US births per 5-year period, 1990–present (SSA data).
