Spellings

Louisa or Luisa?

In the US in 2025, 58% of babies in this name family were spelled Louisa and 42% Luisa. Same name, slightly different impression: here are the figures for each spelling.

Ten years ago

Louisa already led in 2015, with 57% of the family's births; it has 58% in 2025. All spellings together, the family went from 527 to 701 births (+33%).

Births by spelling, 2015 and 2025
Spelling20152025Change
Louisa303407+34%
Luisa224294+31%

How they sound

  • Louisa /luˈisə/ (loo-EE-suh)
  • Luisa /luˈisɑ/ (loo-EE-sah)

In France

In France in 2025: Louisa 415 births (#122 among girls) and Luisa 70 births (#589 among girls).

Sources: Social Security Administration (SSA), Insee (France), 2025 data. How we calculate these figures.

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