Society for Preventing Parents from Naming Their Children Jennifer
en.wikipedia.org
en.wikipedia.org
When I started my current job I found out that there was another person with my first name on the team. My name is not common in the US. I expressed my slight anxiety over this (will people be confused, will this affect my career, etc) to my manager who has a name like “John”. He said, “Oh dude, there’s three other Johns on the team. It’s working out fine for me.” I suddenly felt very silly, and then curious about what having such a common name would be like...
We also have multiple Alex-es. They go by their last names in any overlapping contexts.
And this was in the US. :)
Other than that, I've never thought about it and it's never really impacted me that I've noticed.