Sonja is an established girls' name that peaked in 1967 and has since faded.
Sonja is predominantly a girl name. In 2025 it ranked #3,966 for girl births in the United States (and #6,941 across all names), given to 37 babies. Sonja was first reported in SSA data in 1906 and peaked in 1968 (1,339 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 37 | 37 | #3,966 | — |
| 2024 | 56 | 56 | #2,975 | — |
| 2023 | 65 | 65 | #2,698 | — |
| 2022 | 40 | 40 | #3,822 | — |
| 2021 | 68 | 68 | #2,582 | — |
| 2020 | 76 | 76 | #2,337 | — |
| 2019 | 80 | 80 | #2,284 | — |
| 2018 | 77 | 77 | #2,385 | — |
| 2017 | 69 | 69 | #2,568 | — |
| 2016 | 92 | 92 | #2,124 | — |
| 2015 | 86 | 86 | #2,207 | — |
| 2014 | 110 | 110 | #1,850 | — |
| 2013 | 110 | 110 | #1,846 | — |
| 2012 | 114 | 114 | #1,800 | — |
| 2011 | 108 | 108 | #1,869 | — |
| 2010 | 110 | 110 | #1,858 | — |
| 2009 | 121 | 121 | #1,790 | — |
| 2008 | 120 | 120 | #1,814 | — |
| 2007 | 105 | 105 | #1,969 | — |
| 2006 | 128 | 128 | #1,662 | — |
| 2005 | 127 | 127 | #1,607 | — |
| 2004 | 133 | 133 | #1,519 | — |
| 2003 | 114 | 114 | #1,686 | — |
| 2002 | 110 | 110 | #1,682 | — |
| 2001 | 106 | 106 | #1,712 | — |
| 2000 | 123 | 123 | #1,502 | — |
| 1999 | 146 | 146 | #1,274 | — |
| 1998 | 159 | 159 | #1,179 | — |
| 1997 | 151 | — | #1,203 | — |
| 1996 | 141 | — | #1,243 | — |
| 1995 | 121 | — | #1,367 | — |
| 1994 | 169 | — | #1,072 | — |
| 1993 | 169 | — | #1,080 | — |
| 1992 | 196 | — | #978 | — |
| 1991 | 206 | — | #933 | — |
| 1990 | 237 | — | #831 | — |
| 1989 | 272 | — | #727 | — |
| 1988 | 294 | — | #658 | — |
| 1987 | 303 | — | #631 | — |
| 1986 | 318 | — | #606 | — |
| 1985 | 303 | — | #621 | — |
| 1984 | 266 | — | #659 | — |
| 1983 | 314 | — | #573 | — |
| 1982 | 372 | — | #526 | — |
| 1981 | 401 | — | #502 | — |
| 1980 | 397 | — | #508 | — |
| 1979 | 438 | — | #460 | — |
| 1978 | 481 | — | #422 | — |
| 1977 | 518 | — | #401 | — |
| 1976 | 583 | — | #361 | — |
| 1975 | 615 | — | #354 | — |
| 1974 | 754 | — | #309 | — |
| 1973 | 893 | — | #278 | #3,659 |
| 1972 | 1,191 | — | #233 | — |
| 1971 | 1,194 | — | #247 | #4,842 |
| 1970 | 1,310 | — | #238 | — |
| 1969 | 1,314 | — | #229 | — |
| 1968 | 1,339 | — | #222 | — |
| 1967 | 1,343 | — | #220 | #3,203 |
| 1966 | 1,327 | — | #226 | #3,896 |
| 1965 | 1,125 | — | #255 | — |
| 1964 | 1,051 | — | #278 | — |
| 1963 | 995 | — | #294 | — |
| 1962 | 857 | — | #321 | — |
| 1961 | 867 | — | #320 | — |
| 1960 | 758 | — | #347 | — |
| 1959 | 678 | — | #365 | — |
| 1958 | 524 | — | #406 | — |
| 1957 | 531 | — | #398 | — |
| 1956 | 471 | — | #418 | — |
| 1955 | 445 | — | #419 | — |
| 1954 | 426 | — | #422 | — |
| 1953 | 413 | — | #429 | — |
| 1952 | 389 | — | #434 | — |
| 1951 | 397 | — | #419 | — |
| 1950 | 345 | — | #436 | — |
| 1949 | 412 | — | #391 | — |
| 1948 | 424 | — | #386 | — |
| 1947 | 496 | — | #362 | — |
| 1946 | 484 | — | #337 | — |
| 1945 | 455 | — | #317 | — |
| 1944 | 405 | — | #342 | — |
| 1943 | 530 | — | #304 | #3,981 |
| 1942 | 600 | — | #278 | — |
| 1941 | 567 | — | #268 | — |
| 1940 | 713 | — | #238 | — |
| 1939 | 867 | — | #203 | #3,918 |
| 1938 | 1,122 | — | #180 | #3,971 |
| 1937 | 560 | — | #263 | — |
| 1936 | 180 | — | #479 | — |
| 1935 | 92 | — | #704 | — |
| 1934 | 86 | — | #723 | — |
| 1933 | 54 | — | #935 | — |
| 1932 | 70 | — | #823 | — |
| 1931 | 51 | — | #983 | — |
| 1930 | 71 | — | #853 | — |
| 1929 | 37 | — | #1,239 | — |
| 1928 | 29 | — | #1,499 | — |
| 1927 | 25 | — | #1,719 | — |
| 1926 | 25 | — | #1,713 | — |
| 1925 | 18 | — | #2,181 | — |
| 1924 | 20 | — | #2,054 | — |
| 1923 | 23 | — | #1,829 | — |
| 1922 | 21 | — | #1,950 | — |
| 1921 | 22 | — | #1,914 | — |
| 1920 | 11 | — | #3,071 | — |
| 1919 | 9 | — | #3,422 | — |
| 1918 | 17 | — | #2,194 | — |
| 1917 | 16 | — | #2,194 | — |
| 1916 | 15 | — | #2,230 | — |
| 1915 | 11 | — | #2,670 | — |
| 1914 | 13 | — | #1,998 | — |
| 1913 | 8 | — | #2,513 | — |
| 1906 | 6 | — | #1,925 | — |