Louisa, a quaint but strong vintage name, might feel fresher in English speaking countries than old favorite Louise, just as Diana and Julia have more energy than Diane and Julie at the moment. Part of this might just be that Louisa has never been so popular as Louise, so it makes a familiar but distinctive option alongside Eloise, Lucy, Luna, and Lucia.
 Very popular in the eighteenth century, Louisa was finally toppled at the end of the nineteenth by the French form Louise, which was a top name through the first quarter of the 20th century. Both derived from Ludwig, via Louis, the name has the powerful meaning "renowned warrior", making it a great contender for a spirited girl.
 
Familiar in France and the UK, Louisa re-entered the US Top 1000 in 2014 after a 45 year absence and a current year saw it rank in the latter end of the charts, given to around 380 babies. In comparison, Louise was given to more than 550 babies and ranked just outside the Top 500. 
 Louisa has many literary associations, including Louisa May Alcott, author of Little Women and Little Men; two Charles Dickens novels, Hard Times and Dombey & Sons; and two novels by Jane Austen, Pride and Prejudice and Persuasion. 
 Louisa is a First Lady name, being the wife of President John Quincy Adams. One of Meryl Streep's daughters is named Louisa.
 Some international variations: Luisa, Lovisa, Ludovica, and Luigia. Nicknames include Lou, Lu, Lulu, Ouida, and Ouisa.

Louisa

A merry surname cousin of Kerrigan, could make a lively choice for a happy little girl.

Merrigan

Luna Estelle

Kirrily Maeve

Viola Ruby

Isadora Cecily

Davina Margaery

Juniper Belle

Zella Estelle

angelpye121's list "Girl names I like" of 9 great name ideas: Louisa - Zella Estelle!

Girl names I like

Not too common/popular, but not too far out there either.  :)

Girl names I like

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