What Isobel means
Isobel belongs to the name family reached through Isobel → Isabel. Its meaning is “my God is an oath”.
Origin, language, and formation
Isobel is used in English. Its origins include Hebrew.
Related names and everyday forms
Related names include Isabel.
American usage and historical context
In the United States, 3,802 girls were recorded with the name Isobel between 1894 and 2025. Its highest annual count was 129 in 2016; its best national rank was #817 in 1916.
Over 5 years its rank fell, from #1,996 in 2020 to #2,307 in 2025. Over 10 years its rank fell, from #2,098 in 2015 to #2,307 in 2025.
Sources & methodologyReferences, data & attribution
Meaning, origin, and language notes draw on the references below.
American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.
- Wiktionary: Isobel (English)
- Wiktionary: Isabel
- U.S. Social Security Administration: national name data and limitations
- Wikidata: Isobel Christiansen
- Wikidata: Isobel Campbell
- Wikidata: Isobel Elsom
Wiktionary material is available under CC BY-SA 4.0.