I know one
Suzanna who is 19 and one
Susana who is 13 but no
Susanna's /
Susannah's. I prefer it without the h though.
I like the name
Susan very much, though I can't use it because a person I used to be friends with destroyed it for me.
I think
Susan has a good 30-40 years before popularity returns,
Susanna might get popular in the next 20-25 years, but I doubt it. I think Suzie/Susie/Suzy would be likely as would
Anna, as
Susana is known as both
Suzy and
Ana to her brothers, sister, and step-sisters.
I really dislike Zuzu though, it makes me think of Zazu, the bird from the Lion
King and I always hated him when I was a small child, so I guess it's carried over.
Adelaida nn
Ada is beautiful though, and I also love nns Laidey,
Addy,
Adele,
Della etc.
Adelaida and
Susan would be nice for sisters :).