Gravity, of Pwnwear, asked his readers what was the name of their characters, and why did they choose that name. I've only got two relevant characters, my Paladin, and my DK.
Dämmerung is my first character ever, and my main character. Prot spec since day one. His name is German, it means Twilight. I pulled the name from the fourth act of Richard Wagner's epic 15 hour opera Der Ring des Nibelungen, Götterdämmerung. One of the reasons I choose the name was the duality of it. In addition to twilight, Dämmerung is also the german word for dawn. The beginning and the end, just as the tank is the first one in the fight, and the last one to leave. That, and I kind of hear Ride of the Valkyries playing in my head whenever I pull. One of the fortuitous things about my choice of name and class is that most of the endgame titles suit it very well, Of the Nightfall, Starcaller, Argent Defender, Crusader, Argent Champion, Wrath is a good time to be a paladin with a name related to the night sky.
Czernobög started out as my token DK, because well, everyone has a token DK. He's evolved from a glorified bank alt, into an unstoppable blood spec killing machine, and a comical unholy tank for the occasional heroic on the side. The name is derived from a character in Neil Gaiman's novel, American Gods. In it, Czernobog was the Slavic deity of blood, darkness, and winter. Blood, Unholy, and Frost, the parallels seemed obvious. I threw in a gratuitous umlaut, as I do in most of my character names, in order to throw off the annoying gold spam and phishing whispers that plague my server.