Boy name
Colby
As of 2025, Colby ranks #615 among American boys' names, according to Social Security records. 455 boys received the name that year. The ranking has held remarkably steady over the last five years. SSA records for Colby go back to 1888; the peak came in 2001 at #99, with 3,859 babies named that year. Geographically, it's strongest in West Virginia, where it ranks #227 among boy names.
Rankings
2025 rank
#615
among boy names
Trend
Stable
last 5 years
All-time peak
#99
in 2001 (2000s)
Babies in 2025
455
boys named Colby
Colby popularity, 1880–2025
Where Colby is most popular
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: West Virginia (#227), New Hampshire (#230), Kansas (#324)
Uniqueness score
45/ 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 Colby in the most recent year of SSA data.
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