Abigail vs. Abby: which name is older?
The average Abigail is 21 and the average Abby is 29, so Abby is the older name, by about 9 years.
Abigail
Abby
When was each name popular?
Both names peaked in 2003.
Which name is more common?
There are about 410,000 Abigails and about 60,000 Abbys alive in the US, so there are about 7 times as many Abigails as Abbys.
Boys or girls?
Both are girls' names: over 99% of living Abigails and over 99% of living Abbys are women.
Names the same age as Abigail
Names the same age as Abby
Think you can guess a Abigail's age?
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Abigail or Abby: questions
Which is older, Abigail or Abby?
The average Abigail is 21 and the average Abby is 29, so Abby is the older name, by about 9 years.
How old is the average Abigail?
The average Abigail in the US is 21; half of all living Abigails are between 12 and 27.
How old is the average Abby?
The average Abby in the US is 29; half of all living Abbys are between 19 and 39.
Which is more common, Abigail or Abby?
There are about 410,000 Abigails and about 60,000 Abbys alive in the US, so there are about 7 times as many Abigails as Abbys.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this