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Boy name

Theodor

Theodor holds the #1992 spot on the 2025 list of the most popular boy names in the U.S. That amounts to 76 newborn boys in a single year. The ranking has held remarkably steady over the last five years. Its strongest year on record was 1887 (#921 nationally, 5 newborns), in a data series reaching back to 1884. The name's biggest fan base is in Massachusetts (#789 there in 2025).

Rankings

2025 rank
#1992
among boy names
Trend
Stable
last 5 years
All-time peak
#921
in 1887 (1880s)
Babies in 2025
76
boys named Theodor

Theodor popularity, 1880–2025

0.001%0.003%0.004%0.005%18801900192019401960198020002020#921 in 1887
Boys — share of U.S. male birthsSource: SSA, 1880–2025◆ peak 1887

Where Theodor is most popular

Alaska: fewer than 5 boys named Theodor in 2025AK—Maine: fewer than 5 boys named Theodor in 2025ME—Vermont: fewer than 5 boys named Theodor in 2025VT—New Hampshire: fewer than 5 boys named Theodor in 2025NH—Washington: fewer than 5 boys named Theodor in 2025WA—Idaho: fewer than 5 boys named Theodor in 2025ID—Montana: fewer than 5 boys named Theodor in 2025MT—North Dakota: fewer than 5 boys named Theodor in 2025ND—Minnesota: fewer than 5 boys named Theodor in 2025MN—Wisconsin: fewer than 5 boys named Theodor in 2025WI—Michigan: fewer than 5 boys named Theodor in 2025MI—New York: #1760 (5 boys, 0.01% of boys born 2025)NY#1760Massachusetts: #789 (5 boys, 0.02% of boys born 2025)MA#789Rhode Island: fewer than 5 boys named Theodor in 2025RI—Oregon: fewer than 5 boys named Theodor in 2025OR—Nevada: fewer than 5 boys named Theodor in 2025NV—Wyoming: fewer than 5 boys named Theodor in 2025WY—South Dakota: fewer than 5 boys named Theodor in 2025SD—Iowa: fewer than 5 boys named Theodor in 2025IA—Illinois: fewer than 5 boys named Theodor in 2025IL—Indiana: fewer than 5 boys named Theodor in 2025IN—Ohio: #1267 (5 boys, 0.01% of boys born 2025)OH#1267Pennsylvania: #1231 (5 boys, 0.01% of boys born 2025)PA#1231New Jersey: fewer than 5 boys named Theodor in 2025NJ—Connecticut: fewer than 5 boys named Theodor in 2025CT—California: #1829 (8 boys, 0.00% of boys born 2025)CA#1829Utah: fewer than 5 boys named Theodor in 2025UT—Colorado: fewer than 5 boys named Theodor in 2025CO—Nebraska: fewer than 5 boys named Theodor in 2025NE—Missouri: fewer than 5 boys named Theodor in 2025MO—Kentucky: fewer than 5 boys named Theodor in 2025KY—West Virginia: fewer than 5 boys named Theodor in 2025WV—Virginia: fewer than 5 boys named Theodor in 2025VA—Maryland: fewer than 5 boys named Theodor in 2025MD—Delaware: fewer than 5 boys named Theodor in 2025DE—Arizona: fewer than 5 boys named Theodor in 2025AZ—New Mexico: fewer than 5 boys named Theodor in 2025NM—Kansas: fewer than 5 boys named Theodor in 2025KS—Arkansas: fewer than 5 boys named Theodor in 2025AR—Tennessee: fewer than 5 boys named Theodor in 2025TN—North Carolina: fewer than 5 boys named Theodor in 2025NC—South Carolina: fewer than 5 boys named Theodor in 2025SC—District of Columbia: fewer than 5 boys named Theodor in 2025DC—Oklahoma: fewer than 5 boys named Theodor in 2025OK—Louisiana: fewer than 5 boys named Theodor in 2025LA—Mississippi: fewer than 5 boys named Theodor in 2025MS—Alabama: fewer than 5 boys named Theodor in 2025AL—Georgia: fewer than 5 boys named Theodor in 2025GA—Hawaii: fewer than 5 boys named Theodor in 2025HI—Texas: #2574 (5 boys, 0.00% of boys born 2025)TX#2574Florida: #1831 (5 boys, 0.01% of boys born 2025)FL#1831
Share of boys born in 2025:lowhighno data (< 5 births)
Strongest states: Massachusetts (#789), Pennsylvania (#1231), Ohio (#1267)

Uniqueness score

67/ 100Uncommon
everywhereone of a kind

Distinctive without being unheard of. Based on how many babies per birth were named Theodor in the most recent year of SSA data.

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