US Popularity Rank: 1911

Origin: Hebrew

Meaning: Shield of God

Castiel is a boy's name of Hebrew origin. What better way to keep baby safe and protected than a name meaning "shield of God?" Castiel is also a variation of Cassiel, the patron saint of children born on Thursdays. Whether you want to honor your faith or mark baby's birthday, Castiel is a contender worth considering. If you're looking for a more modern reference, Castiel is the name of a fictional character in the TV series Supernatural. Whatever you take from it, Castiel makes a sweet and intriguing choice for your little angel.