"Variant of Brianna"
The name Bri is commonly a female name from the "Irish" origin.
Bri is a shortened form of longer names that begin with the syllable Bri-, most often Brianna, and also Brielle or Brianne. The spelling keeps the opening consonants of the full name and drops the rest, so Bri takes its origin from whichever full name it is clipped from. It is not an independent name with a root meaning of its own.
Brianna means "Little raven, Raven-haired.".
The pronunciation of Bri is BREE.