Highest ever

Theodore

Meaning not yet researched.

2025 rank
#4
13,355 boys
2015
#99
rank
1950
#99
rank

Theodore: US boys given the name each year, 1880 to 2025, from Social Security card applications. 13,355 in 2025. Its best rank was #4 in 2025.

US births per year · SSA card applications

Its highest rank in 146 years of records is this year’s. About 99.9% of babies named Theodore in 2025 were boys.

Baby name · US data 1880–2025

#4 for US boys in 2025, its highest rank in 146 years of records.

Babies in 2025
13,362
Since 1880
318,175
Years on record
146

Babies named Theodore, every year since 1880

Hover, tap or use the arrow keys for any year. Years with fewer than five babies of a sex are not published by SSA and show as zero.

Boys

Theodore: US boys given the name each year from 1880 to 2025. 13,355 boys in 2025. Peak: #4 in 2025 · most boys in one year: 13,355 (2025).

About the name Theodore

In 2025, 13,355 US boys were named Theodore, making it the 4th most common boys’ name of the year, the same rank as in 2024. That is 1,286 more than the 12,069 boys named Theodore in 2024. Its best rank for boys was #4, reached in this year, 2025. That year also had the most boys given the name: 13,355. For comparison, it was #99 in 2015 and #99 in 1950.

Social Security card records list Theodore in every one of the 146 years from 1880 to 2025; in 1880 there were 232 babies with the name. In all, 318,175 US babies have been given the name, 0.3% of them girls and 99.6% boys. Its busiest decade was the 2020s, with 65,647 babies named Theodore.

Over the 10 years from 2016 to 2025, 91,446 US boys were named Theodore; the busiest of those years was 2025, with 13,355. In 2025 that was about 1 in 128 of the boys in SSA’s list for the year.

Among the states, Theodore ranked highest in New Hampshire in 2025, at #1 for boys there. It was in the top 100 in 51 states (counting DC). Related spellings in the SSA files include Theodor (2,216 babies since 1880) and Theadore (4,005 babies since 1880). Rarer spellings such as Teodoro, Thedore and Teodor are summarised on this page. The open nickname list we use links it to Ted, Teddy and Theo.

Meaning

Meaning not yet researched.

We publish a meaning only with a cited source and a confidence label, and never generate one. Meanings are being researched for the most common names first.

Related spellings

Rare spellings summarised here: Teodoro (3,386), Thedore (1,136), Teodor (468), Fedor (155), Fyodor (103), Theador (86), Theodorus (35), Feodor (5), Teodore (5).

Numbers are all-time US births. Links come from Wikidata’s “said to be the same as” (P460, CC0) and our spelling rule: at most two letters different, with the same sound pattern.

Nicknames

Theodore is listed as a nickname for Theo.

Source: carltonnorthern/nicknames (Apache-2.0).

Theodore by state, 2025

US boys. Rank within each state. SSA leaves out states where fewer than five boys got the name, so every state is listed.

StateBirths 2025Rank 2025Rank 2015
New Hampshire101#1#61
Michigan490#1#93
Kansas183#1#73
Maine83#1#46
Minnesota339#1#24
Wyoming27#1#128
Colorado373#2#57
Vermont34#2#65
Missouri393#2#66
Idaho124#2#88
Alaska45#2#59
Wisconsin323#2#43
Oregon188#2#53
District of Columbia53#2#33
Ohio611#2#89
Nebraska128#2#67
Utah221#3#60
Indiana366#3#105
North Dakota49#3#72
Pennsylvania549#3#100
Connecticut182#3#58
New York738#3#70
Virginia392#3#89
Maryland214#4#77
Massachusetts358#4#46
Washington372#4#56
Rhode Island52#4#86
Oklahoma177#4#130
Iowa176#4#51
Illinois537#4#69
Montana45#5#47
Delaware35#6#124
South Dakota47#6#131
Kentucky191#7#155
New Jersey338#8#121
Arizona268#8#140
Hawaii38#8#118
North Carolina425#8#148
Tennessee323#8#165
Georgia315#9#221
South Carolina178#9#232
West Virginia60#10#242
Arkansas106#10#184
New Mexico53#13#166
Louisiana119#13#284
California1,211#13#118
Florida610#14#160
Alabama143#15#262
Nevada76#17#202
Texas865#26#229
Mississippi31#94#469

Rank by year

Births and national rank for each year SSA lists the name, newest first.

CSV
YearGirlsGirls rankBoysBoys rank
20257#13,07413,355#4
202413#8,39312,069#4
202311#9,54911,093#7
202215#7,60310,824#10
20218#12,1059,600#10
202014#7,9258,638#23
20197#13,6897,896#36
2018——7,088#44
2017——5,973#61
20167#14,2094,910#83
2015——4,155#99
2014——3,228#126
2013——2,429#167
20125#19,3001,945#194
2011——1,573#230
2010——1,333#259
2009——1,239#276
2008——1,139#294
2007——1,137#301
2006——1,133#295
2005——1,095#299
2004——1,005#313
2003——964#309
2002——975#300
2001——935#306
2000——934#312
1999——913#314
1998——984#289
1997——956#291
1996——905#294
1995——956#284
1994——941#291
1993——1,036#277
1992——1,093#259
1991——1,098#251
1990——1,231#233
1989——1,293#216
19889#8,3461,239#211
198711#6,7571,218#206
198613#5,7381,256#200
198516#4,8421,211#201
19845#12,0451,069#213
198311#6,1851,156#206
19826#10,4151,189#207
198111#6,2861,133#218
19806#10,2881,194#206
19797#8,9481,238#198
197812#5,5381,212#195
19778#7,5061,223#194
197613#4,8891,174#189
19755#10,4751,197#189
197419#3,5411,269#180
19738#6,6121,342#175
1972——1,419#175
197111#5,1011,664#166
19708#6,3211,829#160
196912#4,4011,945#153
19685#8,0991,887#149
196713#3,8281,854#149
19667#5,7571,905#149
19657#5,7632,140#143
196410#4,6122,169#152
19639#4,8662,387#142
196212#3,9962,316#146
196115#3,4552,303#151
196011#4,1532,382#149
19598#4,9962,399#146
195815#3,2212,503#140
19578#4,8802,760#132
19565#6,8092,955#119
19557#5,1582,976#120
195413#3,3143,074#115
195313#3,2552,937#112
195210#3,7773,270#100
19517#4,7883,216#99
19508#4,2852,960#99
19496#5,2023,041#100
194811#3,3272,830#104
19475#6,0522,928#102
19466#4,9162,612#101
19456#4,5082,347#101
194411#2,9362,574#96
19435#5,3122,616#96
19426#4,5942,665#91
19415#5,0202,330#95
19407#3,8322,306#90
193911#2,7282,196#90
19389#3,1572,360#84
193711#2,7222,317#86
19369#3,0852,219#87
19356#4,1592,433#79
193418#1,9072,523#74
193312#2,5282,611#68
193215#2,2312,674#67
193120#1,7982,666#70
193020#1,8642,958#67
192930#1,4152,903#65
192825#1,6732,916#66
192724#1,7643,124#62
192617#2,2453,129#63
192515#2,4743,226#63
192415#2,5043,225#65
192319#2,0823,157#62
192214#2,5923,216#62
19217#4,4123,172#65
192016#2,3503,219#63
191917#2,1473,424#54
191816#2,2793,143#64
191711#2,8602,809#63
19168#3,5172,641#65
19157#3,7602,504#64
19147#3,1511,929#64
19136#3,1461,650#60
19128#2,3361,561#52
191110#1,645753#56
19108#1,914692#54
19098#1,748595#51
19085#2,398643#47
1907——712#38
19065#2,192688#38
1905——834#33
1904——834#30
19035#2,060663#36
1902——642#34
19016#1,655450#43
1900——429#61
1899——252#78
1898——281#75
1897——215#85
1896——241#84
1895——208#93
1894——241#82
1893——209#90
1892——239#83
1891——224#76
1890——190#89
1889——231#76
1888——249#80
1887——201#82
1886——258#69
1885——199#84
1884——211#81
1883——185#81
1882——232#75
1881——178#79
1880——232#70

About the data: counts are Social Security card applications for US births, for names given to at least five babies of a sex in a year (SSA, names.zip, public domain). Ranks follow SSA’s own order: most births first, ties alphabetical. Files retrieved 2026-10-05 (checksum on our sources page).