People are often looking for lesser used names so, as has been done in the past, here is a sample of girl names that were used 50 times or fewer in England & Wales in 2023 (the most recent data set).
Here is the full ONS data set.
Agatha
Albertine
Althea
Amabel
Andie
Angelica
Anita
Anne
Aphra
Apolline
Arianne
Aster
Audra
Barbara
Bernadette
Bernice
Bessie
Beth
Blythe
Brenda
Briar
Bridie
Bronwen
Bryony
Cadence
Carina
Carmen
Caroline
Carys
Cecile
Celia
Christine
Claribel
Clarissa
Coco
Coral
Cordelia
Corinne
Cosima
Cynthia
Damaris
Dawn
Delaney
Delphine
Demelza
Diane
Dillon
Dilly
Dolores
Dot
Edina
Eileen
Eleri
Eliora
Elvira
Emerald
Estelle
Eugenia
Fiona
Francine
Frida
Georgette
Gillian
Gladys
Greta
Haisley
Heather
Helen
Hermione
Hester
Hilary
Honor
Hosanna
Iggy
Ilaria
Imelda
Inez
Ingrid
Irene
Isadora
Isolde
Jacinta
Jacqueline
Jane
Jean
Jessa
Judith
Juliana
June
Kate
Kendra
Kenzie
Keturah
Kerensa
Keziah
Kitty
Lavinia
Leonie
Leticia / Letitia
Lilac
Lisa
Louisa
Lorna
Lucille
Lucinda
Lumi
Lyric
Magda
Mallory
Maple
Marion / Marian
Marlena
Marsha
Maude / Maude
Maxine
Melanie
Millicent
Miranda
Missy
Mona
Monica
Morrigan
Morven
Muriel
Murphy
Nadine
Natasha
Nella
Nicola
Nula
Nyx
Odette
Olga
Olwen
Olympia
Ottilie
Pamela
Pandora
Patience
Patricia
Perdita
Petra
Philomena
Pia
Portia
Posie
Priscilla
Prudence
Queenie
Rainbow
Ramona
Renata
Rhiannon
Rhoda
Rio
Rita
Roberta
Rosalia
Rosalind
Rowena
Roxanne
Rumi
Sally
Salome
Samira
Sandy
Saskia
Sawyer
Scout
Selah
Selina
Selma
Serenity
Shyla
Sian
Simone
Snow
Solace
Solana
Sonia / Sonya
Sorrel
Spencer
Suki
Sunday
Susie / Suzie / Suzy
Sybil
Tamara
Tansy
Teddie / Teddy
Tegan / Teagan / Teigan
Teresa / Theresa
Tess
Thora
Tiggy
Tina
Trinity
Trisha
Trixie
Twyla
Ursula
Valerie
Vesper
Viola
Virginia
Wanda
Wallis
Waverly
Wendy
Whitney
Willa
Xanthe
Yasmin
Yvaine
Yvette
Yvonne
Zadie
Zahara
Zaira
Zelda
Zephyr
Zia
Ziggy
Zosia