Pure or chaste
Chastin is a rare variant of the name Chasten, derived from the Old French 'chaste' and Latin 'castus'. It historically refers to a person who is pure or virtuous. While it shares phonetic similarities with names like Justin or Christian, it remains a distinctive and modern-sounding choice.
Fewer than 5 boys were named Chastin in 2025.
US births per 5-year period, 1990–present (SSA data).
Teacher, author, and husband of politician Pete Buttigieg