The baby name Willis appears in baby name data for the United States from 1910 to 2024. It was most popular in 1924 with 1,742 babies given the name.
In the later years of this period, Willis has become less common than it once was.
| Year | Count |
|---|---|
| 1910 | 227 |
| 1911 | 260 |
| 1912 | 481 |
| 1913 | 644 |
| 1914 | 889 |
| 1915 | 1,130 |
| 1916 | 1,275 |
| 1917 | 1,306 |
| 1918 | 1,480 |
| 1919 | 1,530 |
| 1920 | 1,659 |
| 1921 | 1,644 |
| 1922 | 1,694 |
| 1923 | 5 |
| 1923 | 1,614 |
| 1924 | 5 |
| 1924 | 1,742 |
| 1925 | 1,650 |
| 1926 | 1,731 |
| 1927 | 1,392 |
| 1928 | 1,434 |
| 1929 | 1,412 |
| 1930 | 1,499 |
| 1931 | 1,233 |
| 1932 | 12 |
| 1932 | 1,246 |
| 1933 | 6 |
| 1933 | 1,031 |
| 1934 | 1,180 |
| 1935 | 1,040 |
| 1936 | 988 |
| 1937 | 5 |
| 1937 | 962 |
| 1938 | 872 |
| 1939 | 896 |
| 1940 | 799 |
| 1941 | 895 |
| 1942 | 865 |
| 1943 | 906 |
| 1944 | 729 |
| 1945 | 726 |
| 1946 | 661 |
| 1947 | 771 |
| 1948 | 716 |
| 1949 | 657 |
| 1950 | 599 |
| 1951 | 626 |
| 1952 | 660 |
| 1953 | 688 |
| 1954 | 487 |
| 1955 | 580 |
| 1956 | 578 |
| 1957 | 551 |
| 1958 | 464 |
| 1959 | 472 |
| 1960 | 508 |
| 1961 | 348 |
| 1962 | 429 |
| 1963 | 383 |
| 1964 | 373 |
| 1965 | 318 |
| 1966 | 276 |
| 1967 | 242 |
| 1968 | 233 |
| 1969 | 208 |
| 1970 | 293 |
| 1971 | 267 |
| 1972 | 249 |
| 1973 | 185 |
| 1974 | 179 |
| 1975 | 185 |
| 1976 | 189 |
| 1977 | 226 |
| 1978 | 171 |
| 1979 | 256 |
| 1980 | 250 |
| 1981 | 148 |
| 1982 | 211 |
| 1983 | 197 |
| 1984 | 157 |
| 1985 | 184 |
| 1986 | 144 |
| 1987 | 130 |
| 1988 | 151 |
| 1989 | 144 |
| 1990 | 127 |
| 1991 | 98 |
| 1992 | 80 |
| 1993 | 69 |
| 1994 | 60 |
| 1995 | 82 |
| 1996 | 87 |
| 1997 | 66 |
| 1998 | 59 |
| 1999 | 76 |
| 2000 | 48 |
| 2001 | 53 |
| 2002 | 30 |
| 2003 | 38 |
| 2004 | 22 |
| 2005 | 18 |
| 2006 | 37 |
| 2007 | 42 |
| 2008 | 10 |
| 2009 | 13 |
| 2010 | 5 |
| 2011 | 19 |
| 2012 | 39 |
| 2013 | 28 |
| 2014 | 21 |
| 2015 | 24 |
| 2018 | 10 |
| 2020 | 11 |
| 2023 | 20 |
| 2024 | 14 |