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Theodis vs Theodore

American parents have registered 318,175 Theodores since 1880, against 2,244 Theodises. Theodore is still ahead, with 13,362 babies in 2025.

Babies given each name, 1880–2025

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

Theodis 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

Theodore has been the commoner name in every year either was published, 1880 to 2025. The lead has never changed hands.

The closest they came was 1975, when Theodis had 41 and Theodore had 1,202.

Side by side

  Theodis Theodore
Total US births 2,244318,175
Most in one year 6113,362
Babies in 2025 under 513,362
Estimated living today 1,300202,000
Median age today 6013
Peak year 19552025
Best rank 957th boys4th boys
Rank in 2025 unranked4th
First recorded 19111880
Girls / boys 0 / 2,244969 / 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 Theodises alive today are over 60; half the Theodores are over 13. That is 47 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.

Compare something else

Related comparisons

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