I just remembered one of my favorite examples of an aptly named person:

the long distance swimmer Diana Nyad (sp?)

However she spells her name, it is a form of the word for the [Greek?] sea nymphs, the naiads. I'd guess that she either changed her name after taking up swimming or had an increased inclination toward water sports because of her name. I'd say the latter is more likely. If it's pure coincidence, it's a remarkable one!