I m writing a book about a girl named Serena, but I need a good last name. Any recommendations?

You can use Aneres and it's original.

Williams sounds as a good idea. Or Minder. Or something of your own choice then. Cheers

Morrison

Maitland

Hunter

Jackson

Davidson

Albrecht

Dahlman

Adams

Powell

Walden

Chadburn

Caille (pronounced "kay-lee")

Glassmaker

Evans

Sewell

Miller

Wilson

Burns

Brantley

Wilcox

McGee

Shertzer

Hugo

Knight

Halverson

Schmidt

Swanson

Sparks

Norman

Sheridan

Fischer

Cruz

Mahan

Wolf

French

Jecks

Milbauer

Smyth

Widaman

Wilkinson

Lopez

Conrad

Davidhizar

Jenness

Bezdecny

Pearson

A, does she really need a last name at all? I've read dozens of books where a character's last name was never mentioned, or missed.

B, if she does need one, what do you mean by a 'good' one? Define 'good' for these purposes.

Does she really need a last name? is it relevant to the story, will it ever be used? if not then don't worry.

Also there's no such thing as a 'good last name.' If you have to have one, Smith or Jones will do, a Chinese or Italian one (unless they fit your story) probably won't.

Don't worry about the last name now. Just keep writing. You can refer to her as Serena X for the time being and add in her last name later.

Gardens

A good writer selects the names for his/her characters.

Knowe