Kelli vs. Kelly: which name is older?
The average Kelli is 47 and the average Kelly is 48, so Kelly is the older name, by about 1 year.
Kelli and Kelly sound alike, so the spelling is the clue: a Kelly is more likely to have been born in the late 1960s, and a Kelli in the early 1970s.
Kelli
Kelly
When was each name popular?
Kelly peaked first, in 1968 (in the late 1960s). Kelli peaked in 1970, 2 years later.
Which name is more common?
There are about 71,000 Kellis and about 510,000 Kellys alive in the US, so there are about 7 times as many Kellys as Kellis.
Boys or girls?
Women make up over 99% of living Kellis and 87% of living Kellys.
Names the same age as Kelli
Names the same age as Kelly
More comparisons: Kellie vs. Kelly
Think you can guess a Kelli's age?
Ten names, one slider each. Share your score.
Kelli or Kelly: questions
Which is older, Kelli or Kelly?
The average Kelli is 47 and the average Kelly is 48, so Kelly is the older name, by about 1 year.
How old is the average Kelli?
The average Kelli in the US is 47; half of all living Kellis are between 39 and 56.
How old is the average Kelly?
The average Kelly in the US is 48; half of all living Kellys are between 40 and 58.
Which is more common, Kelli or Kelly?
There are about 71,000 Kellis and about 510,000 Kellys alive in the US, so there are about 7 times as many Kellys as Kellis.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this