What does Ottilia mean?
Ottilia \o-tti-lia\ as a name for girls. Ottilia's roots are Old German and French, and the name Ottilia means "prosperity in battle". Ottilia is a variant of Otthild (Old German): from "od hild". Ottilia is also a variation of Ottilie (French).
Ottilia is an uncommon first name for females. Ottilia is also a rare last name for both adults and children. (2000 U.S. Census)
Shown below is the baby name popularity of Ottilia for girls. Ottilia reached its top rank of #783 in the U.S. then, but is not listed at the moment. (Top 1000 Birth Names Statistics, 2014)
Ottilie is the only other popular alternative form of Ottilia. These girl names were at the apex of their popularity during the years 1880-1889 (usage of 0.32%) and are now significantly less popular, with the forms Ottilia and Ottilie becoming less trendy. Below is a graphed comparison of the usage of the girl name Ottilia and related names. (Top 1000 Birth Names Statistics, 2014)