Aidan’s one of the biggest stories of the ’00s. It didn’t hit the charts until the ’90s, when it averaged a ranking of 311. Since then, it’s been passed by variation Aiden, which resides just outside the top 15. Aidan has both the trendy Irish element, and the even trendier “-aden” ending. Well, this name’s more like just the ending…but it’s an ending that’s spawned tons of made-up names like Jayden and Kaden. Aidan, though, is very much a real name -- it stems from the old Irish name Aodhan, which has been used by several monks, saints, and bishops.