My DD, 4, has a name that is top 700 in the ONS stats, unsurprisingly we've yet to meet another one. It's a name that is top 10 in some euro countries though so she is delighted to find 3 with her name competing in Rio.
If you google 'name' Rio 2016 that works. Also tells you what time they are competing so you can tune in.
Go Germany and Belgium!