Diana vs. Dianna: which name is older?
The average Diana is 52 and the average Dianna is 58, so Dianna is the older name, by about 7 years.
Diana and Dianna sound alike, so the spelling is the clue: a Dianna is more likely to have been born in the late 1950s, and a Diana in the late 1950s.
Diana
Dianna
When was each name popular?
Both names peaked in 1957.
Which name is more common?
There are about 310,000 Dianas and about 46,000 Diannas alive in the US, so there are about 7 times as many Dianas as Diannas.
Boys or girls?
Both are girls' names: over 99% of living Dianas and over 99% of living Diannas are women.
Names the same age as Diana
Names the same age as Dianna
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Diana or Dianna: questions
Which is older, Diana or Dianna?
The average Diana is 52 and the average Dianna is 58, so Dianna is the older name, by about 7 years.
How old is the average Diana?
The average Diana in the US is 52; half of all living Dianas are between 34 and 69.
How old is the average Dianna?
The average Dianna in the US is 58; half of all living Diannas are between 49 and 72.
Which is more common, Diana or Dianna?
There are about 310,000 Dianas and about 46,000 Diannas alive in the US, so there are about 7 times as many Dianas as Diannas.
Estimates from Social Security Administration baby-name records (births 1880–2025) and SSA cohort life tables (2026 Trustees Report). How we calculate this