Theo

Given to 39,333 US babies since 1880

▲ Rising +118% vs. 2018–2020

Rank in 2025
#5722
recorded as girls
#82
recorded as boys
Babies in 2025
3,966
girls 21 · boys 3,945
Peak year
2023
4,140 babies recorded as boys
All-time total
39,333
since 1880

Born a Theo? See how many share your birth year.

Any year from 1880 to 2025.

Babies per 1,000 (same sex), 1880–2025

Recorded as girls Recorded as boys
Babies per 1,000 (same sex), 1880–2025Theo was most popular in 2023, when 4,140 babies recorded as boys got the name (2.4 per 1,000). In 2025, 3,945 babies were named Theo, ranking #82 for babies recorded as boys. Compared with 2018–2020, it's up 118%.00.751.52.25318801900192019401960198020002020Peak 2023 (boys) Babies per 1,000 (same sex), 1880–2025Theo was most popular in 2023, when 4,140 babies recorded as boys got the name (2.4 per 1,000). In 2025, 3,945 babies were named Theo, ranking #82 for babies recorded as boys. Compared with 2018–2020, it's up 118%.00.751.52.2531880192019602000Peak 2023 (boys)

Theo was most popular in 2023, when 4,140 babies recorded as boys got the name (2.4 per 1,000). In 2025, 3,945 babies were named Theo, ranking #82 for babies recorded as boys. Compared with 2018–2020, it's up 118%.

Download chart
Show every year
YearGirlsRankBoysRank
2025 21 5722 3,945 82
2024 31 4473 4,129 80
2023 42 3640 4,140 78
2022 50 3220 3,642 98
2021 64 2674 2,703 142
2020 44 3450 2,225 172
2019 31 4437 2,018 195
2018 7 12464 1,554 243
2017 7 12713 1,232 290
2016 11 9411 952 354
2015 <5 — 765 405
2014 <5 — 550 509
2013 <5 — 365 663
2012 <5 — 287 790
2011 <5 — 245 863
2010 <5 — 221 914
2009 <5 — 187 1032
2008 <5 — 188 1019
2007 <5 — 191 1012
2006 <5 — 156 1116
2005 <5 — 139 1150
2004 <5 — 133 1172
2003 <5 — 109 1291
2002 5 15432 98 1346
2001 <5 — 84 1460
2000 <5 — 101 1282
1999 <5 — 76 1489
1998 <5 — 63 1642
1997 <5 — 62 1628
1996 <5 — 53 1740
1995 <5 — 56 1623
1994 <5 — 54 1664
1993 <5 — 50 1721
1992 <5 — 59 1510
1991 5 13147 61 1452
1990 <5 — 66 1370
1989 <5 — 77 1219
1988 <5 — 77 1145
1987 <5 — 75 1106
1986 <5 — 85 1003
1985 <5 — 76 1057
1984 <5 — 23 2232
1983 <5 — 27 1955
1982 <5 — 33 1734
1981 <5 — 31 1811
1980 <5 — 36 1619
1979 6 9010 38 1532
1978 <5 — 46 1352
1977 <5 — 51 1245
1976 <5 — 58 1111
1975 6 7984 57 1114
1974 <5 — 32 1546
1973 <5 — 27 1696
1972 <5 — 26 1721
1971 <5 — 23 1862
1970 7 6362 28 1615
1969 5 7471 29 1492
1968 <5 — 24 1614
1967 <5 — 29 1411
1966 6 5809 23 1613
1965 <5 — 43 1144
1964 13 3692 39 1236
1963 8 4896 32 1375
1962 12 3782 26 1546
1961 16 3189 36 1322
1960 7 5168 42 1210
1959 8 4625 36 1302
1958 11 3747 35 1305
1957 20 2563 37 1278
1956 11 3696 39 1218
1955 23 2280 33 1313
1954 16 2779 30 1382
1953 18 2516 33 1304
1952 18 2502 41 1152
1951 18 2391 46 1052
1950 31 1679 41 1105
1949 22 2069 36 1185
1948 33 1621 47 1023
1947 35 1602 39 1159
1946 31 1583 43 1045
1945 53 1080 48 927
1944 27 1578 44 974
1943 33 1442 61 846
1942 26 1630 45 991
1941 34 1310 39 1040
1940 32 1313 38 1050
1939 27 1424 64 754
1938 19 1805 64 764
1937 33 1255 40 1000
1936 30 1321 73 690
1935 39 1119 71 725
1934 39 1133 55 845
1933 39 1123 62 775
1932 41 1116 76 708
1931 43 1074 85 643
1930 55 993 90 645
1929 71 842 75 721
1928 62 947 92 652
1927 58 1000 109 592
1926 90 763 104 614
1925 102 727 98 641
1924 111 705 97 653
1923 75 845 92 668
1922 102 720 109 617
1921 96 747 107 611
1920 98 729 97 640
1919 109 666 92 633
1918 105 702 87 664
1917 91 735 89 629
1916 98 692 96 593
1915 98 667 91 601
1914 64 720 81 546
1913 50 741 62 550
1912 53 689 50 568
1911 36 722 31 533
1910 29 794 35 461
1909 44 580 22 558
1908 24 791 34 403
1907 31 680 29 429
1906 27 707 17 568
1905 34 600 23 463
1904 31 612 27 401
1903 29 607 18 505
1902 35 545 24 415
1901 19 747 18 453
1900 22 780 14 680
1899 16 814 10 661
1898 25 650 16 523
1897 28 567 11 652
1896 24 635 12 641
1895 25 607 14 556
1894 17 719 12 594
1893 19 662 11 615
1892 25 554 9 748
1891 21 572 11 564
1890 12 791 12 566
1889 18 600 8 722
1888 17 612 9 704
1887 19 512 10 583
1886 15 572 8 694
1885 11 658 8 700
1884 16 520 7 764
1883 7 754 14 479
1882 10 596 12 540
1881 8 623 8 653
1880 7 679 9 640

Free printables

Tracing sheet (PDF) Desk name tag (PDF) Cubby labels (PDF)

See all Theo printables →

Names like Theo

Names whose popularity rose and fell over the same years.

ArloArlo history2,514 in 2025 HayesHayes history2,327 in 2025 WellsWells history958 in 2025 RiggsRiggs history329 in 2025 AzraelAzrael history443 in 2025 AtlasAtlas history4,558 in 2025

Where Theo is most popular

Times more common than the national rate, 2016–2025.

Recorded as girls 9% · boys 91% across all years