French Heloise, from Germanic hail, "healthy", or heil, "whole" — healthy; wide. Heloise's twelfth-century letters to Abelard are among the first personal letters in European literature.
Eloise ranks 49th among American girls in 2025, with 4,256 born that year. Its best year was 2025, when 4,256 babies were given the name, ranking 49th. The typical living American called Eloise is about 10 years old today. It is relatively most common in Vermont, where it accounts for 0.59% of births.
Source: US Social Security Administration, national and state name files, 2025 release, and the Office for National Statistics for England and Wales. Etymology researched and written by our editors. Living-population and median-age figures are our own estimates, described in the methodology.