We’ll give you…umm… negative one guesses on what this name means. Christian is actually one of the original unisex names, used for both boys and girls in the Middle Ages. It’s been in the top 25 since ’96, and may actually soon overtake the slightly less overtly pious Christopher. Its biggest jump came from the ’80s (average ranking 100) to the ’90s (32). If you like the name but want a little less of a religious connection, consider the alternative spelling Cristian.