Pure
Catalyna is a modern creative spelling of Catalina, the Spanish form of Katherine. It ultimately derives from the Greek name Aikaterine, which has long been associated with the Greek word 'katharos', meaning pure.
Less common today
Catalyna isn't in the latest US Top 1000. It last peaked at #5,282 in 2018.
US births per 5-year period, 1990βpresent (SSA data).