How rare is the name Iain?

3,574 people in the United States have the first name Iain, about 1 in 84,508. It ranks #4,977 of 53,615 first names in the 2020 Census, tied with 1 other.

first name

IAIN

#4,977

of 53,615 first names recorded in the 2020 Census

People
3,574
About
1 in 84,508
This common or more
84.7%
Who bears it

Of the 3,574 people named Iain, 84.2% reported their origin as White, 5.9% as Hispanic or Latino and 5.8% as two or more races. Virtually all are male (99.8%). These count how people described themselves on the 2020 Census, not where the name comes from.

Iain peaked in 2003, when 126 babies got the name.

Births per year, SSA records 1880–2025
19532025
Peak year
2003
Births that year
126
In 2025*
11 ▼91%
Recorded as
almost entirely male

At least 2,911 babies have been given the name since 1953. Years SSA withheld, because fewer than 5 were born, are skipped rather than drawn as zero. * 2025 is the newest year published and it undercounts: a card application is filed some time after a birth.

Iain by decade

Among all names given to American babies, its best decade was the 2000s, when it ranked #3,302. The largest share of babies named Iain, 50.1%, were born between 1997 and 2012, as Generation Z.

1950s#11,50216
1960s#6,070112
1970s#6,236157
1980s#4,618320
1990s#3,703618
2000s#3,3021,011
2010s#5,497522
2020s#8,731155
Baby boom 1946–642.1%
Generation X 1965–808.2%
Millennials 1981–9623.4%
Generation Z 1997–1250.1%
2013 and later16.2%

Rank counts both sexes together, among every name SSA recorded that decade; the number under it is births. The 2020s run only to 2025. Generation years follow Pew Research Center, which has not named a generation after 2012.

Exactly as common as Iain

1 other first name also has 3,574 people.

#4,977 Rolland · 3,574

Either side of Iain

#4,974 Brennon · 3,575#4,974 Jeramiah · 3,575#4,977 Rolland · 3,574#4,979 Alaysia · 3,572

Spelled almost the same

2 first names in the 2020 Census spelled within a letter or two of Iain, most common first.

#251 Ian · 222,811#21,143 Iann · 483

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