Willliam is a very rare variant of William that peaked in 2006 and has since faded.
Willliam is a boy name. In 2025 it ranked #10,618 for boy births in the United States (and #21,891 across all names), given to 7 babies. Willliam first appears in 1922 and peaked in 2006 (12 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 7 | 7 | #10,618 |
| 2021 | 6 | 6 | #12,068 |
| 2019 | 9 | 9 | #8,846 |
| 2017 | 6 | 6 | #12,172 |
| 2014 | 5 | 5 | #13,972 |
| 2013 | 5 | 5 | #13,966 |
| 2012 | 10 | 10 | #8,118 |
| 2011 | 5 | 5 | #14,245 |
| 2010 | 5 | 5 | #14,160 |
| 2009 | 5 | 5 | #14,417 |
| 2008 | 5 | 5 | #14,518 |
| 2007 | 7 | 7 | #10,869 |
| 2006 | 12 | 12 | #6,889 |
| 2005 | 8 | 8 | #9,069 |
| 2004 | 6 | 6 | #11,296 |
| 2003 | 6 | 6 | #10,848 |
| 2002 | 5 | 5 | #12,427 |
| 2001 | 5 | 5 | #12,244 |
| 2000 | 6 | 6 | #10,303 |
| 1999 | 5 | 5 | #11,555 |
| 1998 | 8 | 8 | #7,529 |
| 1997 | 8 | — | #7,256 |
| 1996 | 6 | — | #8,976 |
| 1992 | 7 | — | #7,390 |
| 1991 | 6 | — | #8,203 |
| 1990 | 6 | — | #8,085 |
| 1988 | 10 | — | #4,772 |
| 1986 | 5 | — | #7,790 |
| 1985 | 7 | — | #5,765 |
| 1984 | 5 | — | #7,317 |
| 1983 | 8 | — | #4,895 |
| 1982 | 6 | — | #6,369 |
| 1975 | 7 | — | #4,792 |
| 1971 | 8 | — | #3,957 |
| 1969 | 8 | — | #3,589 |
| 1968 | 6 | — | #4,126 |
| 1966 | 5 | — | #4,531 |
| 1960 | 5 | — | #4,586 |
| 1958 | 7 | — | #3,556 |
| 1953 | 5 | — | #4,329 |
| 1941 | 5 | — | #3,992 |
| 1922 | 7 | — | #3,862 |