The Hulk's parents decided to name him after his Italian grandfather, Vincenzo. In English, Vincenzo is translated to Vincent. It comes from the Roman name Vincentius, which comes from the Latin word, vincere, which means "to conquer," according to Behind the Name.
In Italian, the name is shortened to Enzo, which
is what little Hulk is now called most of the time. In English, there are many versions of the name, including Vince, Vin, and Vinnie. Conquering - at least for the side of good - is certainly a superhero trait. Coming from the word for "winner" only adds to its heroic feel.
Some famous people with versions of this name include Vince Vaughn and Vin Diesel. Of course, perhaps, the most famous historical figure with the name is Vincent van Gogh.