[Beijinger]

Wanker is a family name in Austria. I knew a scientist who started every talk with the origins of his family name....

[gorkaerana]

Spanish also delights us with unlucky surnames. E.g., three acquaintances of my father have the family names "Feo", "Bastardo", and "Gay"; which translate, respectively, to "ugly", "bastard", and, of course, "gay".

[Beijinger]

Well, I know European Companies that wanted to expand into the US market.

One was named PMS LLC and one had a product that was named xfriend.

Both names are very memorable, but not the best choice.

Xfriend was actually a pretty good software: https://xfriend.soft112.com/

(only description, not for download anymore)

[ClikeX]

We've got Dutch people that are literally called Dick Cock.