Duffy
Boys' nameMeaning not yet documented
Duffy has been given to 643 babies in the U.S. since 1915. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1969, with 22 recorded.
Babies named Duffy, 2012
1 in 732,000
Duffy over time, 1880–2025
Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Duffy?
Duffy had fewer than 5 recorded uses in 2025, so these figures use 2012, the last year it was published.
- Among all babies, 2012
- 1 in 732,000
- 5 of 3,657,590 births
- Among boys only
- 1 in 379,000
- <0.01% of boys
- Rank, 2012
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 507,051 kids
- Even odds of a second one
Where Duffy sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2012 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 507,051 children born in 2012 and it's an even bet that one of them is another Duffy. In a class of 30 the chance is Under 1%.
When Duffys were born
Half of everyone ever recorded as Duffy was born before 1961 — so the typical Duffy is around 64 today.
- Biggest decade
- 1950s
- 21.7% of all use
- Born in the last 25 years
- 5.6%
- Mostly a past generation
- Recorded since 1950
- 458
- People you could plausibly meet
1950s — 21.7% of all recorded uses (136).
Is Duffy rising or falling?
Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.
- Rank vs 1 year ago
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1969 (22)
- Years since peak
- 56
- Years
- Year-to-year steadiness
- Volatile
- 36.3% average annual change
Spellings of Duffy
Duffy is not the most common spelling — Dusty is, with 81.9% against Duffy's 4.8%.
Where Duffy is used
Across 1910–2025, Duffy was most concentrated in California — about 1 in — boys, against 1 in 3,486,540 across all states with data.
Most concentrated
- 1California1 in —
Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Duffy has too little recent state data to map, so this covers all years from 1910.
Duffy by the numbers
The raw record for each sex the name is used for.
As a boy's name
Names similar to Duffy
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Duffy
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.