Jacobus is a very rare boys' name that peaked in 1997 and has grown less common since.
Jacobus is a boy name. In 2025 it ranked #12,777 for boy births in the United States (and #26,309 across all names), given to 5 babies. Jacobus was first reported in SSA data in 1979 and peaked in 1997 (8 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 5 | 5 | #12,777 |
| 2024 | 6 | 6 | #11,483 |
| 2022 | 5 | 5 | #13,119 |
| 2021 | 5 | 5 | #12,895 |
| 2020 | 5 | 5 | #12,843 |
| 2017 | 5 | 5 | #13,058 |
| 2011 | 5 | 5 | #13,075 |
| 2010 | 8 | 8 | #9,126 |
| 2008 | 8 | 8 | #9,328 |
| 2006 | 5 | 5 | #12,789 |
| 2005 | 5 | 5 | #12,141 |
| 2004 | 5 | 5 | #12,069 |
| 2003 | 5 | 5 | #11,588 |
| 2002 | 8 | 8 | #7,954 |
| 2001 | 6 | 6 | #9,755 |
| 2000 | 5 | 5 | #11,072 |
| 1999 | 6 | 6 | #9,162 |
| 1997 | 8 | — | #6,861 |
| 1996 | 5 | — | #9,607 |
| 1994 | 6 | — | #8,170 |
| 1989 | 5 | — | #8,413 |
| 1988 | 5 | — | #7,753 |
| 1985 | 5 | — | #6,965 |
| 1981 | 5 | — | #6,689 |
| 1979 | 6 | — | #5,649 |