It just so happens I just researched this name. It is a really unusual example because it has returned to popularity way sooner than is normal for a name which had dropped away relatively recently, at least in the USA.
If look at
Dean's popularity curve, it peaked in 1961 and then plummetted in use between about 1966 and 1978. It sort of plateaued then, and starts to inch up in 2006, just after "Supernatural" premiered. So the people on this thread who have mentioned
Dean Winchester are not at all unusual -- he obviously was such a popular character he did almost the impossible, revive a name which had fallen away and where the average bearer of it was in his early 40s. Normally names that fall away like
Dean did don't revive until the average bearer is closer to 90! If you look at the chart on this site you will see
Dean has risen rather slowly and still isn't as common as it was in the 1960s, but that it has definitely come back so much so soon is still quite amazing. I never watched this show at all myself, but
Dean Winchester must have had an amazing appeal to people in the "new parents" generation for this to have happened.
This means of course that whatever an individual thinks of
Dean, the image of the name at the moment for younger generations must be dominated by
Dean Winchester. (I'm so old I still think of
Dean Martin and
Dean Jones!) :)
I have an acquaintance who had his first child, a boy named
Dean, about 18 months ago and was quite surprised the baby had that name. Now I know why. :)