Humanverse

Oliver vs Theodore

American parents have registered 318,175 Theodores since 1880, against 270,680 Olivers. But in 2025 it was Oliver that was commoner, 14,963 babies to 13,362.

Babies given each name, 1880–2025

Births per year: Oliver against Theodore, 1880 to 2025 0 4k 8k 12k 16k 1880 1900 1920 1940 1960 1980 2000 2020

Oliver Theodore

Each line is every baby given the name that year, girls and boys added together — the only count that means the same thing for both names. A line breaks where the name fell below five babies in a year — the point at which the SSA stops publishing it — rather than being drawn through a figure nobody published. A single published year in a gap shows as a dot.

Who was ahead

Of the 146 years in which either name was published, Theodore for 110 years and Oliver for 36 years. The lead changed hands 10 times.

Side by side

  Oliver Theodore
Total US births 270,680318,175
Most in one year 15,42113,362
Babies in 2025 14,96313,362
Estimated living today 231,000202,000
Median age today 713
Peak year 20242025
Best rank 3rd boys4th boys
Rank in 2025 3rd4th
First recorded 18801880
Girls / boys 777 / 269,903969 / 317,206

A rank is a position within one sex’s list for one year, so the two rank rows are not subtracted from one another and the winning column is not marked on them. The living figure is a life-table estimate, not a count.

Which name is older

Half of the Theodores alive today are over 13; half the Olivers are over 7. That is 6 years between them: two names in use at the same time, worn by two different generations.

Where each one is strongest

How much commoner the name is in that state than it is nationally, from births recorded since 1910.

Both names abroad

Countries whose statistics office publishes both names, so the comparison can be made somewhere other than the United States.

Country Oliver Theodore
England and Wales 160,35132,849
France 2,34515,515
New Zealand 8,2871,462
Scotland 7,509996
Ireland 6,4221,003
Poland 5,960149
Northern Ireland 2,995445
Switzerland 2,812429 Théodore
Belgium 2,017736 Théodore

Every spelling a country files separately is added together, over whatever years that country publishes — which is not the same range in any two of them, so read the columns against each other and not the rows.

Compare something else

Related comparisons

Social Security Administration birth records, 1880–2025, public domain. Full histories: Oliver and Theodore.