Is Isobel a boy or girl name?

Isobel is a girl’s name. Of the 3,802 Americans recorded with the name since 1880, 100.0% were girls and 0.0% were boys.

Name Legacy

Isobel

Recorded 1894–2025 · United States

Isobel was most popular in 2016, when 129 American babies were given the name — ranking #3,007 that year. In 2025 it ranked #4,142, with 79 births. Across 1880–2025 the Social Security Administration has recorded 3,802 people named Isobel.

Isobel over time

Births per year. The dot marks Isobel’s peak in 2016. Gaps are years the SSA suppressed, which it does for any name given to fewer than five babies.

Is Isobel a boy’s or a girl’s name?

Across the whole record Isobel is a girl’s name — 100.0% of the 3,802 Americans given it were girls and 0.0% were boys. In births since 2016 it is 100% girls and 0% boys.

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.

Names that peaked alongside Isobel

Where Isobel is most concentrated

How much more common the name is in each state than across the country as a whole.

Explore further

See Isobel on the interactive charts

Source: U.S.A. Social Security Administration. Years 1880–2025. namelegacy.org