Louise \lo(ui)-se\ as a girl's name is pronounced loo-EEZ. It is of Old German origin, and the meaning of Louise is "famous warrior". Feminine form of Louis; French version of Ludwig. Louisa was more common in the 18th and 19th centuries. Saint Louise (16th century) was co-founder with Saint Vincent de Paul of the nursing order Daughters of Charity. Author Louisa May Alcott; actresses Louise Brooks, Louise Lasser.
Louise has 37 variant forms: Aloisa, Aloise, Aloysia, Eloisa, Eloise, Heloisa, Heloise, Lluisa, Lois, Loise, Lola, Lolita, Lou, Louella, Louisa, Louisetta, Louisette, Louisina, Louisiana, Louisiane, Louisine, Louiza, Lovisa, Lowise, Loyise, Lu, Ludovica, Ludovika, Ludwiga, Luella, Luisa, Luise, Lujza, Lujzika, Lula, Lulita and Lulu.