Recorded 1912–1997 · United States
Glennis was most popular in 1947, when 80 American babies were given the name — ranking #1,701 that year. It was not recorded in 2025. Across 1880–2025 the Social Security Administration has recorded 2,777 people named Glennis.
Across the whole record Glennis is a unisex name — 74.0% of the 2,777 Americans given it were girls and 26.0% were boys. It changed hands: since 1959 it has gone mainly to girls, having gone mainly to boys before that.
Counted from every US birth the Social Security Administration recorded under this name, so it reflects use rather than opinion. A name given to fewer than five babies of one sex in a year is withheld at source and is not counted.
How much more common the name is in each state than across the country as a whole.
See Glennis on the interactive charts
Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org