Boy name
Duncan
As of 2025, Duncan ranks #1123 among American boys' names, according to Social Security records. 190 boys received the name that year. Popularity is fading: #982 five years ago, #1123 now. SSA records for Duncan go back to 1880; the peak came in 1997 at #378, with 644 babies named that year. Geographically, it's strongest in Oregon, where it ranks #604 among boy names.
Rankings
2025 rank
#1123
among boy names
Trend
Falling
last 5 years
All-time peak
#378
in 1997 (1990s)
Babies in 2025
190
boys named Duncan
Duncan popularity, 1880–2025
Where Duncan is most popular
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: Oregon (#604), Colorado (#626), Wisconsin (#678)
Uniqueness score
55/ 100Balanced
everywhereone of a kind
Well known, but far from crowded — the middle of the field. Based on how many babies per birth were named Duncan in the most recent year of SSA data.