Queen or grace
A modern compound name likely blending the Spanish 'Rey' (king) or French 'Reine' (queen) with the Hebrew-derived 'Anne' (grace). It represents a combination of regal authority and gentle favor.
Less common today
Reyanne isn't in the latest US Top 1000. It last peaked at #8,075 in 1995.
US births per 5-year period, 1990βpresent (SSA data).