High, noble, or strong
Brianca is a modern elaboration of the name Brianne or Brianna, which are feminine forms of the Irish name Brian. It likely incorporates the suffix '-ca' to create a unique, rhythmic sound while retaining the traditional meaning of nobility and strength.
Less common today
Brianca isn't in the latest US Top 1000. It last peaked at #2,257 in 1990.
US births per 5-year period, 1990βpresent (SSA data).