I think there was a thread along these lines a few months ago but I couldn't find it so I thought I'd start another one.
Here are a few of the names that my friends' parents were called when I was growing up that I can't imagine anyone ever calling a baby........
Elaine
Yvonne
Jackie
Sheila
Pat
Pauline
Tina
Joan
Mark
Paul
Ray
Nigel
Alan
Ken
Neville
Brian
I also thought about highly unlikely names for baby twins in 2023 and came up with a few....
Malcolm and Wendy
Jason and Sandra
Russell and Paula
Gary and Judith
Any others?