In Latin American countries, all rules are suspended. I live in the Dominican Republic and have travelled in most Latin American countries, and have found that:
Elmer, Elvis, Felix and Vladimir are fairly common. No one bats an eyelid.
Homer(o) and other classical Greek names like Achilles and Pericles are still to be found, especially among the older generation.
Adolf(o), as well as Stalin and even Stalina as a first name for a girl, as well as Hitler and Mussolini are also not unheard of.
Slight hijack - naming girls after place-names is another strange one. I’ve met several Kenyas, Grecias, a Bélgica and even an Albania and a Hanoi.
I know a Kermit…he’s about 45, and I know a lot of Richards, but most of them go by Rick or Rich…not a Dick in the bunch. And they are all under 40.
I had a friend in high school named Gay…her sister was Gigi, her mother Gwen (brothers Greg and Guy…notice a trend…their last name started with a G, also) but I can imagine that the name Gay is no longer popular.
That’s right. In college, my sister switched to her middle name, Elizabeth. I went by my middle name up until the third grade. So that limited the window a little. No one in either my immediate or extended family was ever a Peter Pan fan. So I was only tormented with the Peter Cotton-Tail song by the one unhinged aunt. And living in the DC area meant that “Peter” didn’t have any slang meaning to bother me.