Kastiel is a name of Hebrew origin, meaning "my cover is God." It is a unisex name but is more commonly used for males. The name has gained popularity in recent years due to its unique sound and spiritual significance. Kastiel is also associated with the popular television series Supernatural, where an angel named Kastiel appears as one of the main characters. This character portrayal may have contributed to the increased familiarity and use of this name.
"Kastiel saw a steady increase in popularity from 2012 to 2021, with the highest number of births recorded that year at 29. However, it seems there was a slight decrease in its usage in 2022 and 2023."