One of the traditional characters in some of the Scottish ballads is TamLyn; in this case Lyn is his surname and his first name is the Scottish form of Tom, short for Thomas. He's a magical character, a prophet and sometimes a shapeshifter - exciting!
If he and his name have anything to do with you, I can't say. Perhaps somebody thought that Tamlyn sounded good as a combination. Anyway, if you click on the hyperlinks you'll get the info.