Gracious, divine, or ancient
Keanna is a modern American creation, likely formed by combining the prefix 'Ke-' with the name Anna. It is often associated with the meanings of its components, such as 'grace' from the Hebrew Anna, or linked to the Irish name Cian meaning 'ancient'.
Less common today
Keanna isn't in the latest US Top 1000. It last peaked at #913 in 1995.
British championship swimmer
US births per 5-year period, 1990βpresent (SSA data).