Alanzo is a rare variant of Alonzo that peaked in 2014 and has grown less common since.
Alanzo is a boy name. In 2025 it ranked #5,615 for boy births in the United States (and #11,849 across all names), given to 16 babies. Alanzo first appears in 1882 and peaked in 2014 (28 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 16 | 16 | #5,615 |
| 2024 | 21 | 21 | #4,707 |
| 2023 | 8 | 8 | #8,952 |
| 2022 | 9 | 9 | #8,333 |
| 2021 | 19 | 19 | #4,937 |
| 2020 | 13 | 13 | #6,306 |
| 2019 | 19 | 19 | #4,962 |
| 2018 | 20 | 20 | #4,744 |
| 2017 | 12 | 12 | #6,702 |
| 2016 | 26 | 26 | #3,993 |
| 2015 | 23 | 23 | #4,298 |
| 2014 | 28 | 28 | #3,694 |
| 2013 | 25 | 25 | #3,969 |
| 2012 | 12 | 12 | #6,639 |
| 2011 | 12 | 12 | #6,588 |
| 2010 | 15 | 15 | #5,746 |
| 2009 | 14 | 14 | #6,104 |
| 2008 | 8 | 8 | #9,036 |
| 2007 | 9 | 9 | #8,193 |
| 2006 | 13 | 13 | #6,104 |
| 2003 | 7 | 7 | #8,677 |
| 2002 | 7 | 7 | #8,476 |
| 2001 | 6 | 6 | #9,279 |
| 2000 | 8 | 8 | #7,441 |
| 1999 | 5 | 5 | #9,958 |
| 1997 | 10 | — | #5,650 |
| 1996 | 5 | — | #9,046 |
| 1995 | 8 | — | #6,425 |
| 1994 | 8 | — | #6,386 |
| 1992 | 6 | — | #7,451 |
| 1991 | 7 | — | #6,530 |
| 1990 | 5 | — | #8,141 |
| 1989 | 6 | — | #6,964 |
| 1988 | 5 | — | #7,301 |
| 1984 | 6 | — | #5,579 |
| 1983 | 6 | — | #5,495 |
| 1978 | 9 | — | #3,863 |
| 1975 | 6 | — | #4,810 |
| 1973 | 5 | — | #5,113 |
| 1972 | 6 | — | #4,452 |
| 1971 | 5 | — | #4,916 |
| 1970 | 6 | — | #4,240 |
| 1969 | 5 | — | #4,410 |
| 1965 | 5 | — | #3,937 |
| 1964 | 6 | — | #3,603 |
| 1961 | 7 | — | #3,358 |
| 1882 | 7 | — | #755 |