Several.
My first real nickname was Mini-Tall Howard. This was due to a friend of mine who was a grade above me in highschool. Though his name was Travis, people in his class referred to him as Tall Howard (Due to his height, though the meaning of the Howard part always evaded the two of us). He and I looked quite a bit alike one-another back then. Blue eyes, brown hair, we'd even been mistaken for one another by various people. Conversely, kids in my class thought of him as Big Ben (My name being Ben).
Then, when Grade 10 rolled along I began to wear a Che Guevara beret. Thus I earned the nickname Communist...if one can call how it was used a nickname. Conversely, some other people (Mostly girls, for some reason) called me Zombie, because I always wore black and occasionally sported Black Metal affectations.
Since then, I've also become known by Benji, Benito, Benjo and oddly, Kiddy.