It sounds made up, like someone thought Adrian was boring so they added an H. I know it has some historical significance but to me it's in the same realm as those strange made-up modern names like Brayden, Jaiden, Kaeden, etc.
I named my son Hadrian in 2009. I did think about how he would be treated knowing that most people, especially at that time had no idea this was an historical name. Also, I live in Indiana, not the most cultured place BUT the pluses outweighed the negatives. One, it was my favorite boy name as I picked it out 7 years before when reading about it and seeing a statue. People asked me if I made it up. The first few years of his life people would get it wrong, calling him Adrian and Hayden. BUT now he’s just Hadrian and more people know the name and don’t question. I was worried people thought I was pretentious because of the explanation of the name but I could care less... I’m not. Boy names are hard. I do like unique names but wasn’t going to name my son Jet-plane just to be different. I truly love the name and my 9 year old too and can’t wait to one day visit Hadrian’s wall and his name actually started his interest in history. Great name! Don’t regret it one bit!
A welcome change from the popular name of Adrian. But I keep reading this name as Hadron. As in the Large Hadron Collider. I guess some folks would probably think that you're a science geek and named your child accordingly. Which is cool IMO! XD.
In the contemporary English-speaking world "Hadrian" is unusable. I am of the United States, and know for certain that it will be viewed as unprofessional, pompous, pretentious, childish, and "kre8tiv" (made-up!). Be aware of those facts before you write anything in stone. Ponder the issues of "Will the name chosen aid my child's future career?" "Will s/he be wrongly passed due to a name?" "Will s/he be subject to mocking?" "Will I be thanked later in life for the name given?"
I beg to differ with Francesca. I, too, am in the U.S., and Hadrian would not be seen as anything she listed. I suppose some could find it a tad pretentious, but that's it. It most certainly isn't "kre8ive." Learned people in the English-speaking world (and most others) should know of Hadrian's Wall along with the emperor for whom it was named.