Nope, nary a one (my last name is my stepfather’s). There are lots of hits under my birth name, though, as both first and last names are German.
I did a vanity Google search on my SDMB name a few years ago and discovered a woman in Canada had co-opted it on different message boards, Facebook and whatnot. It was kinda weird cuz “Happy Lendervedder” isn’t exactly a common name.
As far as real life goes, I know a few people that share my name, including my cousin’s son.
No. I get a lot of Latvians, but no one with my specific name.
I smile at that.
That site tells me one of my name, and there’s definitely at least two (both even found on Facebook, so not hiding out from public info), so I would take that as a lower bound for how many there are.
ETA: I’m responding to the other quotes in your post, not that particular one, in case there’s confusion.
I have a very common first name and a very uncommon last name…I have never randomly met anyone with my last name. I’ve only found one other person with the same combination of first & last…she was on Jeopardy once, and it was very strange to hear the announcer say it referring to someone else.
ETA: Just looked my name up on that site…it says there are 275 people in the US with my last name. Pretty rare!
Yeah, it says there’s only one of me as well, and I know for a fact there are two. I’'ll bet they are using some sort of probability algorithm, not actual records.
There are many duplicates out there of my name. Not only that, both my first and last names are common in the opposite position (i.e. if my name was “Robert Joyce” [it isn’t], “Joyce Robert” would also be common). A little googling shows a fairly important person that shares my First, Middle, and Last name.
Went to high school for four years with a guy that had the same name as me. Both our fathers did too, so there were four of us all told. Still friends with the high school guy today.
I probably share my first name-last name with hundreds if not thousands. I infer this from the fact that are 4 people with Wiki pages with that combo. However, the other three all have middle initials, which I don’t. One of them was a high official in the Obama administration. It is not the name on my birth certificate, although I have never actually used that name, not even when I was registered for kindergarten. That would be a rarer combination.
When I worked for a credit union we had a pre-teenaged customer who has the same first and last name as me. Different middle names. Her mother is about the same age I am. When the mother would come in I would say “Hi Mom!” and people would look at us really funny.
I know there’s at least a few others out there with my name. One was a substitute teacher for one of the school districts here in town and I used to get phone calls asking if I was available to work. She got married and changed her name and those calls finally stopped.
If I was forced to bet I’d put the money on being unique in the world, but there isn’t a way to know for sure. My surname is very uncommon, but there are a few relatives scattered around the world and my first name is not very unusual. If they do exist they have no public internet presence. Everything in a Google search relates to me. But I wouldn’t be shocked if one day someone with my surname chooses my fairly standard first name for their kid.
I should note that when my father married his second wife, who had the same first name as my mother, she changed her surname to a more French-looking spelling of her mother’s maiden name, making her the only person in the world with that surname (because the French do not spell that name quite that way).
I’m Facebook friends with a guy who has my name. His last name is Hispanic in origin whereas mine is Bohemian.
Up until a couple years ago, I was the only one with my name, as far as I know. My cousin, who has the same last name as me, married a woman with the same first name as me. So when she took his name, she also took mine. 
Huh. 384 of me, 15 of the Mrs. and “one or fewer” of my daughter…
Yes and she works for the same huge government organization I do. I use a middle initial in my official email address since I guess she was there first. I get her mail and she gets mine. I’m in Fl and she is in Va.
I have found somebody with my First Middle and Last name.
My middle and last names are pretty common but my first name much less so, down around the 500th most common given name according to mcgato’s link in post 34.
Two cousins I never met. Another one I don’t like who uses his middle name as his first, trying to make the world think I flew F-104s. Don’t like him, but I like reflected glory. Someone else who races vintage sports cars and one who races yachts. I’ve stolen their lives. Everybody else is a soap star sharing my first name, performing my present-transitive-verbish surname to/on someone else.
Quite a few people have my first last name, and a town in Florida
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One apparently well-known Irish soccer player, one actor from 100 years ago, one modern film critic from Scotland, one academic professor who does a popular YouTube channel and has a pop-psych following (path of synchronicity, law of attraction & the heart, etc), and with a minor change in first-name spelling, an MTV VJ from the early days.
I can hardly find myself on Google, dammit!