This gist has two files in it: first-names.txt and last-names.txt, each with 4096 names taken from some unnamed database.
Useful for generating mock data for testing or for opfuscating production data for testing.
See https://stackoverflow.com/a/50242368/15109 for some thoughts about data obfuscation.
There are, of course, recorded cases of people with digits in their names, so having some of those might catch out someone who thinks they can validate that names don't contain digits.