Theo
In 2025, Theo had a published SSA count of 4K in the boys series and ranked 82 among names in that series.
Rank
#82
Count
4K
Year
2025
Trend
Rising
Sex Split in Published History
girls series
8.9%
1880–2025 · 4K total across published yearly counts
boys series
91.1%
1880–2025 · 36K total across published yearly counts
Peak Popularity
Peak Year
2023
Peak Count
4K
Change Since Peak
-4.7%
Recent Changes
5-Year Change
77.3%
10-Year Change
415.7%
Popularity Over Time by Sex
girls series
boys series
View yearly SSA counts
| Year | Series | Count |
|---|---|---|
| 2025 | boys | 4K |
| 2025 | girls | 21 |
| 2024 | boys | 4K |
| 2024 | girls | 31 |
| 2023 | boys | 4K |
| 2023 | girls | 42 |
| 2022 | boys | 4K |
| 2022 | girls | 50 |
| 2021 | boys | 3K |
| 2021 | girls | 64 |
| 2020 | boys | 2K |
| 2020 | girls | 44 |
| 2019 | boys | 2K |
| 2019 | girls | 31 |
| 2018 | boys | 2K |
| 2018 | girls | 7 |
| 2017 | boys | 1K |
| 2017 | girls | 7 |
| 2016 | boys | 952 |
| 2016 | girls | 11 |
| 2015 | boys | 765 |
| 2014 | boys | 550 |
| 2013 | boys | 365 |
| 2012 | boys | 287 |
| 2011 | boys | 245 |
| 2010 | boys | 221 |
| 2009 | boys | 187 |
| 2008 | boys | 188 |
| 2007 | boys | 191 |
| 2006 | boys | 156 |
| 2005 | boys | 139 |
| 2004 | boys | 133 |
| 2003 | boys | 109 |
| 2002 | boys | 98 |
| 2002 | girls | 5 |
| 2001 | boys | 84 |
| 2000 | boys | 101 |
| 1999 | boys | 76 |
| 1998 | boys | 63 |
| 1997 | boys | 62 |
| 1996 | boys | 53 |
| 1995 | boys | 56 |
| 1994 | boys | 54 |
| 1993 | boys | 50 |
| 1992 | boys | 59 |
| 1991 | boys | 61 |
| 1991 | girls | 5 |
| 1990 | boys | 66 |
| 1989 | boys | 77 |
| 1988 | boys | 77 |
| 1987 | boys | 75 |
| 1986 | boys | 85 |
| 1985 | boys | 76 |
| 1984 | boys | 23 |
| 1983 | boys | 27 |
| 1982 | boys | 33 |
| 1981 | boys | 31 |
| 1980 | boys | 36 |
| 1979 | boys | 38 |
| 1979 | girls | 6 |
| 1978 | boys | 46 |
| 1977 | boys | 51 |
| 1976 | boys | 58 |
| 1975 | boys | 57 |
| 1975 | girls | 6 |
| 1974 | boys | 32 |
| 1973 | boys | 27 |
| 1972 | boys | 26 |
| 1971 | boys | 23 |
| 1970 | boys | 28 |
| 1970 | girls | 7 |
| 1969 | boys | 29 |
| 1969 | girls | 5 |
| 1968 | boys | 24 |
| 1967 | boys | 29 |
| 1966 | boys | 23 |
| 1966 | girls | 6 |
| 1965 | boys | 43 |
| 1964 | boys | 39 |
| 1964 | girls | 13 |
| 1963 | boys | 32 |
| 1963 | girls | 8 |
| 1962 | boys | 26 |
| 1962 | girls | 12 |
| 1961 | boys | 36 |
| 1961 | girls | 16 |
| 1960 | boys | 42 |
| 1960 | girls | 7 |
| 1959 | boys | 36 |
| 1959 | girls | 8 |
| 1958 | boys | 35 |
| 1958 | girls | 11 |
| 1957 | boys | 37 |
| 1957 | girls | 20 |
| 1956 | boys | 39 |
| 1956 | girls | 11 |
| 1955 | boys | 33 |
| 1955 | girls | 23 |
| 1954 | boys | 30 |
| 1954 | girls | 16 |
| 1953 | boys | 33 |
| 1953 | girls | 18 |
| 1952 | boys | 41 |
| 1952 | girls | 18 |
| 1951 | boys | 46 |
| 1951 | girls | 18 |
| 1950 | boys | 41 |
| 1950 | girls | 31 |
| 1949 | boys | 36 |
| 1949 | girls | 22 |
| 1948 | boys | 47 |
| 1948 | girls | 33 |
| 1947 | boys | 39 |
| 1947 | girls | 35 |
| 1946 | boys | 43 |
| 1946 | girls | 31 |
| 1945 | boys | 48 |
| 1945 | girls | 53 |
| 1944 | boys | 44 |
| 1944 | girls | 27 |
| 1943 | boys | 61 |
| 1943 | girls | 33 |
| 1942 | boys | 45 |
| 1942 | girls | 26 |
| 1941 | boys | 39 |
| 1941 | girls | 34 |
| 1940 | boys | 38 |
| 1940 | girls | 32 |
| 1939 | boys | 64 |
| 1939 | girls | 27 |
| 1938 | boys | 64 |
| 1938 | girls | 19 |
| 1937 | boys | 40 |
| 1937 | girls | 33 |
| 1936 | boys | 73 |
| 1936 | girls | 30 |
| 1935 | boys | 71 |
| 1935 | girls | 39 |
| 1934 | boys | 55 |
| 1934 | girls | 39 |
| 1933 | boys | 62 |
| 1933 | girls | 39 |
| 1932 | boys | 76 |
| 1932 | girls | 41 |
| 1931 | boys | 85 |
| 1931 | girls | 43 |
| 1930 | boys | 90 |
| 1930 | girls | 55 |
| 1929 | boys | 75 |
| 1929 | girls | 71 |
| 1928 | boys | 92 |
| 1928 | girls | 62 |
| 1927 | boys | 109 |
| 1927 | girls | 58 |
| 1926 | boys | 104 |
| 1926 | girls | 90 |
| 1925 | boys | 98 |
| 1925 | girls | 102 |
| 1924 | boys | 97 |
| 1924 | girls | 111 |
| 1923 | boys | 92 |
| 1923 | girls | 75 |
| 1922 | boys | 109 |
| 1922 | girls | 102 |
| 1921 | boys | 107 |
| 1921 | girls | 96 |
| 1920 | boys | 97 |
| 1920 | girls | 98 |
| 1919 | boys | 92 |
| 1919 | girls | 109 |
| 1918 | boys | 87 |
| 1918 | girls | 105 |
| 1917 | boys | 89 |
| 1917 | girls | 91 |
| 1916 | boys | 96 |
| 1916 | girls | 98 |
| 1915 | boys | 91 |
| 1915 | girls | 98 |
| 1914 | boys | 81 |
| 1914 | girls | 64 |
| 1913 | boys | 62 |
| 1913 | girls | 50 |
| 1912 | boys | 50 |
| 1912 | girls | 53 |
| 1911 | boys | 31 |
| 1911 | girls | 36 |
| 1910 | boys | 35 |
| 1910 | girls | 29 |
| 1909 | boys | 22 |
| 1909 | girls | 44 |
| 1908 | boys | 34 |
| 1908 | girls | 24 |
| 1907 | boys | 29 |
| 1907 | girls | 31 |
| 1906 | boys | 17 |
| 1906 | girls | 27 |
| 1905 | boys | 23 |
| 1905 | girls | 34 |
| 1904 | boys | 27 |
| 1904 | girls | 31 |
| 1903 | boys | 18 |
| 1903 | girls | 29 |
| 1902 | boys | 24 |
| 1902 | girls | 35 |
| 1901 | boys | 18 |
| 1901 | girls | 19 |
| 1900 | boys | 14 |
| 1900 | girls | 22 |
| 1899 | boys | 10 |
| 1899 | girls | 16 |
| 1898 | boys | 16 |
| 1898 | girls | 25 |
| 1897 | boys | 11 |
| 1897 | girls | 28 |
| 1896 | boys | 12 |
| 1896 | girls | 24 |
| 1895 | boys | 14 |
| 1895 | girls | 25 |
| 1894 | boys | 12 |
| 1894 | girls | 17 |
| 1893 | boys | 11 |
| 1893 | girls | 19 |
| 1892 | boys | 9 |
| 1892 | girls | 25 |
| 1891 | boys | 11 |
| 1891 | girls | 21 |
| 1890 | boys | 12 |
| 1890 | girls | 12 |
| 1889 | boys | 8 |
| 1889 | girls | 18 |
| 1888 | boys | 9 |
| 1888 | girls | 17 |
| 1887 | boys | 10 |
| 1887 | girls | 19 |
| 1886 | boys | 8 |
| 1886 | girls | 15 |
| 1885 | boys | 8 |
| 1885 | girls | 11 |
| 1884 | boys | 7 |
| 1884 | girls | 16 |
| 1883 | boys | 14 |
| 1883 | girls | 7 |
| 1882 | boys | 12 |
| 1882 | girls | 10 |
| 1881 | boys | 8 |
| 1881 | girls | 8 |
| 1880 | boys | 9 |
| 1880 | girls | 7 |