There are 456 of me.
Go here and enter your first and last names. It will search U.S. census records and tell you a few interesting things about your first and last names, including how many people share both. Cool site.
I knew mine would be fairly rare. My mother is one of 201, and my father is a rare bird indeed, as he is one of only 49!
I’m a one and only.
I checked my maiden name. There are zero people with that name.
As a married person, I am one of 8. (And I know one of the other 7: my FIL’s second wife.) Since I gave up my maiden name, that person no longer exists.
According to this, there are only 28 people in the USA with my first and last name.
I used to think I had a rare combination, but when I joined a local chain gym (New York Sports Club) two years ago, the lady doing my paperwork asked me if I was already current or former member. I said no and asked why, and she told me it was because my name came up on their computer. Four times. All in the five boroughs of NYC (different addresses), and just for this chain of gyms.
My first name is shared by 192,775 other people, or 0.063% of the US. Which is fine by me - it’s common enough that people know how to spell and say it properly (unless they’re really stupid), but rare enough that I’ve only ever met a handful of people with my name.
My last name returns 0 results. That doesn’t surprise me, although it’s not true. I have a crapload of relatives on my dad’s side.
Married- 6074
Maiden- 6
Married last name is incredibly common, but my first name isn’t as popular as it used to be.
Full hyphenated last name: 0 results, of course.
First part of the last name (the one I generally use): 26 hits.
Second part: 0.
Mom is one of 400. Dad got 1 match. Guess who’s half of the hyphenated last name is rarer?
ETA: Wow, my sister with the second part of our last name got one match as well. Huh.
Wow. Some of you people are really rare. May I inquire why? (I.e., is it a rare, heavily ethnic name, unusual spelling of a more common variant, Ellis Island screw-up, whatever?)
There are 47 of me.
With my maiden name, only 10.
Both last names are ridiculously common, but apparently the combination of my first name, Anastasia, with either of them is much less common. Hell, my married surname is shared with almost 100,000 other US citizens. Frankly, I’m surprised the combinations (particularly my married name) haven’t come up more often.
This thing lies. According to it, there’s only one of me (true.)
But it also says there is only one of my husband (not true.) There are at least 7 of my husband in his family alone. He has four or five cousins and an uncle with the same first and last name, and they are all named after his grandfather.
Only 4 of me in this country. My last name is not very common even in the old country (the land of my great-grandfather’s birth, that is) according to an online phone directory I once found.
There are zero of me in the US (my last name isn’t in their database).
There are 3 of me in the US with my soon-to-be married name.
There are 401 of the Superhero in the US, and only 12 of him with our soon-to-be married name.
We are making up our own new married name, which is an actual last name and more common than mine (it’s in the database) but far less common than his.
That web page says there are zero people in the U.S. with my last name.
The folks at Ellis Island took one look at my grandfather’s last name and said English speaking people can’t pronounce names with that many consonants. So they took out a few. It’s not exactly a name like Smith, but it is reasonably common in Greece.
There are a couple dozen people in the U.S. with my last name. They are all related to my grandfather who came over to the U.S. in the 1920’s.
There are 85 of me.
For kicks, I put in the names of some of the characters from my stories, with various results. But I have to wonder about the quality of their database when they claim there are no people in the entire country with the first name Etienne or Arkady. I know there’s not like 70,000 of them, but those are real names. 
8 of me in the U.S. Freaky.
Apparently my first name is unique in America. How peculiar :dubious:
3,036 have the same first name, 57,681 have the same last name, and only one person has both the same. But it’s not me, as I’m not in the US!
One hundred and forty two!
40 of me.
I was expecting more, but since both my names have Scottish connections…
Full legal name - 0! (I’m not in the USA)
Maiden name 60
Everyday married name - 1
I’m quite unusual, it seems.