Follower of Christ
Kristain is a rare variant of Christian, derived from the Latin word Christianus. It signifies one who follows the teachings of Christ and has historically been used for both boys and girls, though it remains very uncommon compared to its traditional counterparts.
Less common today
Kristain isn't in the latest US Top 1000. It last peaked at #5,039 in 1995.
US births per 5-year period, 1990βpresent (SSA data).