Dennis was a very popular boys' name that peaked at #16 in 1949 but is far less common today.
Dennis is predominantly a boy name. In 2025 it ranked #707 for boy births in the United States (and #1,424 across all names), given to 381 babies. Dennis was first reported in SSA data in 1880 and peaked in 1952 (24,552 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 381 | 381 | — | #707 |
| 2024 | 381 | 381 | #15,891 | #709 |
| 2023 | 427 | 427 | — | #644 |
| 2022 | 428 | 428 | #15,921 | #652 |
| 2021 | 393 | 393 | #11,383 | #690 |
| 2020 | 420 | 420 | #13,871 | #647 |
| 2019 | 510 | 510 | — | #553 |
| 2018 | 497 | 497 | — | #556 |
| 2017 | 521 | 521 | #16,505 | #545 |
| 2016 | 594 | 594 | #13,276 | #510 |
| 2015 | 592 | 592 | — | #494 |
| 2014 | 584 | 584 | #15,074 | #486 |
| 2013 | 625 | 631 | — | #454 |
| 2012 | 661 | 674 | — | #424 |
| 2011 | 700 | 706 | #7,898 | #413 |
| 2010 | 734 | 744 | #12,596 | #391 |
| 2009 | 859 | 866 | #8,563 | #362 |
| 2008 | 850 | 850 | #7,499 | #368 |
| 2007 | 989 | 997 | #6,389 | #330 |
| 2006 | 1,042 | 1,060 | #8,862 | #313 |
| 2005 | 1,055 | 1,070 | #7,606 | #316 |
| 2004 | 1,042 | 1,051 | #5,102 | #308 |
| 2003 | 1,130 | 1,142 | #5,644 | #282 |
| 2002 | 1,104 | 1,123 | #5,131 | #280 |
| 2001 | 1,197 | 1,218 | #6,403 | #270 |
| 2000 | 1,353 | 1,386 | #9,340 | #251 |
| 1999 | 1,353 | 1,380 | #7,353 | #239 |
| 1998 | 1,331 | 1,355 | #7,218 | #238 |
| 1997 | 1,509 | — | #5,073 | #209 |
| 1996 | 1,559 | — | #5,117 | #203 |
| 1995 | 1,702 | — | #6,744 | #185 |
| 1994 | 1,810 | — | #4,565 | #177 |
| 1993 | 1,975 | — | #7,641 | #164 |
| 1992 | 2,179 | — | #6,389 | #150 |
| 1991 | 2,341 | — | #3,851 | #138 |
| 1990 | 2,511 | — | #5,351 | #129 |
| 1989 | 2,696 | — | #4,393 | #123 |
| 1988 | 2,667 | — | #5,394 | #116 |
| 1987 | 2,778 | — | #3,883 | #107 |
| 1986 | 2,735 | — | #3,072 | #104 |
| 1985 | 2,871 | — | #3,345 | #103 |
| 1984 | 2,978 | — | #3,348 | #97 |
| 1983 | 3,078 | — | #2,800 | #92 |
| 1982 | 3,420 | — | #3,106 | #87 |
| 1981 | 3,657 | — | #3,551 | #83 |
| 1980 | 3,832 | — | #3,083 | #80 |
| 1979 | 4,123 | — | #2,252 | #75 |
| 1978 | 3,893 | — | #2,642 | #71 |
| 1977 | 4,197 | — | #2,096 | #68 |
| 1976 | 4,201 | — | #2,497 | #66 |
| 1975 | 4,758 | — | #2,697 | #59 |
| 1974 | 4,912 | — | #2,405 | #59 |
| 1973 | 5,222 | — | #1,839 | #56 |
| 1972 | 5,647 | — | #2,030 | #52 |
| 1971 | 6,614 | — | #2,493 | #49 |
| 1970 | 7,345 | — | #2,320 | #46 |
| 1969 | 7,402 | — | #1,842 | #44 |
| 1968 | 7,434 | — | #2,172 | #45 |
| 1967 | 7,676 | — | #1,856 | #43 |
| 1966 | 7,819 | — | #2,029 | #44 |
| 1965 | 8,252 | — | #1,892 | #44 |
| 1964 | 9,369 | — | #1,811 | #42 |
| 1963 | 9,862 | — | #1,820 | #39 |
| 1962 | 10,685 | — | #1,561 | #37 |
| 1961 | 12,549 | — | #1,676 | #34 |
| 1960 | 14,357 | — | #1,507 | #31 |
| 1959 | 16,103 | — | #1,385 | #29 |
| 1958 | 16,472 | — | #1,452 | #29 |
| 1957 | 16,978 | — | #1,359 | #28 |
| 1956 | 18,414 | — | #1,415 | #26 |
| 1955 | 20,488 | — | #1,388 | #23 |
| 1954 | 20,804 | — | #1,483 | #21 |
| 1953 | 23,709 | — | #1,359 | #19 |
| 1952 | 24,605 | — | #1,320 | #18 |
| 1951 | 24,311 | — | #1,368 | #17 |
| 1950 | 22,901 | — | #1,478 | #17 |
| 1949 | 21,785 | — | #1,472 | #16 |
| 1948 | 21,809 | — | #1,389 | #17 |
| 1947 | 23,758 | — | #1,050 | #17 |
| 1946 | 21,495 | — | #1,243 | #17 |
| 1945 | 15,027 | — | #1,315 | #19 |
| 1944 | 13,720 | — | #1,190 | #20 |
| 1943 | 14,184 | — | #955 | #20 |
| 1942 | 13,313 | — | #1,454 | #20 |
| 1941 | 9,599 | — | #1,247 | #23 |
| 1940 | 7,884 | — | #1,174 | #24 |
| 1939 | 6,238 | — | #1,479 | #34 |
| 1938 | 4,248 | — | #2,474 | #49 |
| 1937 | 3,169 | — | #2,992 | #63 |
| 1936 | 2,637 | — | #2,727 | #74 |
| 1935 | 2,615 | — | #1,861 | #72 |
| 1934 | 2,068 | — | #2,108 | #95 |
| 1933 | 1,698 | — | #2,301 | #106 |
| 1932 | 1,434 | — | #2,396 | #121 |
| 1931 | 1,210 | — | #3,287 | #138 |
| 1930 | 1,190 | — | #2,040 | #145 |
| 1929 | 1,007 | — | #2,973 | #154 |
| 1928 | 968 | — | #2,816 | #159 |
| 1927 | 934 | — | #2,360 | #165 |
| 1926 | 850 | — | #2,739 | #173 |
| 1925 | 834 | — | #3,758 | #177 |
| 1924 | 812 | — | #5,254 | #178 |
| 1923 | 782 | — | #3,431 | #181 |
| 1922 | 683 | — | #4,580 | #198 |
| 1921 | 739 | — | #2,808 | #190 |
| 1920 | 632 | — | #3,697 | #207 |
| 1919 | 636 | — | #3,055 | #202 |
| 1918 | 647 | — | #3,084 | #203 |
| 1917 | 591 | — | #3,154 | #199 |
| 1916 | 532 | — | — | #206 |
| 1915 | 514 | — | — | #209 |
| 1914 | 390 | — | #2,702 | #212 |
| 1913 | 324 | — | — | #205 |
| 1912 | 268 | — | — | #206 |
| 1911 | 166 | — | — | #189 |
| 1910 | 135 | — | — | #196 |
| 1909 | 120 | — | — | #187 |
| 1908 | 101 | — | — | #200 |
| 1907 | 111 | — | — | #191 |
| 1906 | 89 | — | — | #198 |
| 1905 | 106 | — | — | #179 |
| 1904 | 90 | — | — | #196 |
| 1903 | 75 | — | — | #206 |
| 1902 | 85 | — | — | #194 |
| 1901 | 79 | — | — | #183 |
| 1900 | 132 | — | — | #158 |
| 1899 | 86 | — | — | #169 |
| 1898 | 99 | — | — | #166 |
| 1897 | 96 | — | — | #162 |
| 1896 | 90 | — | — | #179 |
| 1895 | 108 | — | — | #142 |
| 1894 | 84 | — | — | #179 |
| 1893 | 83 | — | — | #172 |
| 1892 | 82 | — | — | #191 |
| 1891 | 89 | — | — | #147 |
| 1890 | 102 | — | — | #139 |
| 1889 | 111 | — | — | #128 |
| 1888 | 106 | — | — | #145 |
| 1887 | 93 | — | — | #139 |
| 1886 | 98 | — | — | #138 |
| 1885 | 112 | — | — | #122 |
| 1884 | 113 | — | — | #127 |
| 1883 | 112 | — | — | #115 |
| 1882 | 135 | — | — | #108 |
| 1881 | 99 | — | — | #120 |
| 1880 | 128 | — | — | #106 |