A follower of Christ
Kerstie is a phonetic variant of Kirsty, which is a Scottish diminutive of Christina. It ultimately derives from the Latin name Christianus, meaning a follower of the Christian faith.
Less common today
Kerstie isn't in the latest US Top 1000. It last peaked at #5,830 in 1990.
Emmy-winning actress known for Cheers
Scottish television and radio presenter
US births per 5-year period, 1990βpresent (SSA data).