Arnulfo is an uncommon boys' name that peaked in 1992 and has since faded.
Arnulfo is a boy name. In 2025 it ranked #3,762 for boy births in the United States (and #8,092 across all names), given to 29 babies. Arnulfo first appears in 1909 and peaked in 1992 (119 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 29 | 29 | #3,762 |
| 2024 | 17 | 17 | #5,458 |
| 2023 | 25 | 25 | #4,233 |
| 2022 | 16 | 16 | #5,653 |
| 2021 | 23 | 23 | #4,374 |
| 2020 | 19 | 19 | #4,873 |
| 2019 | 28 | 28 | #3,803 |
| 2018 | 23 | 23 | #4,365 |
| 2017 | 37 | 37 | #3,131 |
| 2016 | 39 | 39 | #2,996 |
| 2015 | 31 | 31 | #3,517 |
| 2014 | 39 | 39 | #2,934 |
| 2013 | 34 | 34 | #3,191 |
| 2012 | 43 | 43 | #2,776 |
| 2011 | 48 | 48 | #2,548 |
| 2010 | 42 | 42 | #2,827 |
| 2009 | 54 | 54 | #2,382 |
| 2008 | 65 | 65 | #2,104 |
| 2007 | 66 | 66 | #2,071 |
| 2006 | 76 | 76 | #1,808 |
| 2005 | 72 | 72 | #1,803 |
| 2004 | 77 | 77 | #1,673 |
| 2003 | 86 | 86 | #1,497 |
| 2002 | 84 | 84 | #1,498 |
| 2001 | 88 | 88 | #1,415 |
| 2000 | 89 | 89 | #1,402 |
| 1999 | 84 | 84 | #1,395 |
| 1998 | 78 | 78 | #1,449 |
| 1997 | 89 | — | #1,284 |
| 1996 | 105 | — | #1,127 |
| 1995 | 98 | — | #1,159 |
| 1994 | 104 | — | #1,104 |
| 1993 | 111 | — | #1,047 |
| 1992 | 119 | — | #988 |
| 1991 | 103 | — | #1,071 |
| 1990 | 98 | — | #1,072 |
| 1989 | 97 | — | #1,057 |
| 1988 | 79 | — | #1,125 |
| 1987 | 87 | — | #1,016 |
| 1986 | 83 | — | #1,015 |
| 1985 | 86 | — | #986 |
| 1984 | 83 | — | #976 |
| 1983 | 74 | — | #1,028 |
| 1982 | 89 | — | #951 |
| 1981 | 87 | — | #964 |
| 1980 | 95 | — | #911 |
| 1979 | 86 | — | #952 |
| 1978 | 75 | — | #997 |
| 1977 | 86 | — | #913 |
| 1976 | 86 | — | #893 |
| 1975 | 85 | — | #894 |
| 1974 | 79 | — | #914 |
| 1973 | 88 | — | #843 |
| 1972 | 62 | — | #1,024 |
| 1971 | 67 | — | #990 |
| 1970 | 69 | — | #968 |
| 1969 | 88 | — | #822 |
| 1968 | 61 | — | #930 |
| 1967 | 51 | — | #1,018 |
| 1966 | 59 | — | #941 |
| 1965 | 55 | — | #996 |
| 1964 | 64 | — | #952 |
| 1963 | 48 | — | #1,101 |
| 1962 | 45 | — | #1,148 |
| 1961 | 60 | — | #1,002 |
| 1960 | 80 | — | #843 |
| 1959 | 57 | — | #1,019 |
| 1958 | 63 | — | #957 |
| 1957 | 43 | — | #1,185 |
| 1956 | 56 | — | #999 |
| 1955 | 65 | — | #921 |
| 1954 | 77 | — | #826 |
| 1953 | 79 | — | #806 |
| 1952 | 68 | — | #845 |
| 1951 | 96 | — | #707 |
| 1950 | 69 | — | #819 |
| 1949 | 93 | — | #713 |
| 1948 | 71 | — | #802 |
| 1947 | 31 | — | #1,320 |
| 1946 | 42 | — | #1,060 |
| 1945 | 31 | — | #1,182 |
| 1944 | 35 | — | #1,120 |
| 1943 | 38 | — | #1,107 |
| 1942 | 27 | — | #1,335 |
| 1941 | 31 | — | #1,189 |
| 1940 | 35 | — | #1,107 |
| 1939 | 29 | — | #1,222 |
| 1938 | 26 | — | #1,311 |
| 1937 | 34 | — | #1,121 |
| 1936 | 22 | — | #1,420 |
| 1935 | 31 | — | #1,198 |
| 1934 | 26 | — | #1,324 |
| 1933 | 34 | — | #1,125 |
| 1932 | 38 | — | #1,091 |
| 1931 | 26 | — | #1,363 |
| 1930 | 55 | — | #892 |
| 1929 | 46 | — | #996 |
| 1928 | 41 | — | #1,097 |
| 1927 | 36 | — | #1,203 |
| 1926 | 42 | — | #1,094 |
| 1925 | 27 | — | #1,425 |
| 1924 | 32 | — | #1,291 |
| 1923 | 14 | — | #2,230 |
| 1922 | 22 | — | #1,651 |
| 1921 | 26 | — | #1,477 |
| 1920 | 17 | — | #1,970 |
| 1919 | 21 | — | #1,630 |
| 1918 | 16 | — | #2,005 |
| 1917 | 12 | — | #2,288 |
| 1916 | 21 | — | #1,552 |
| 1915 | 7 | — | #3,108 |
| 1914 | 5 | — | #3,290 |
| 1913 | 5 | — | #2,846 |
| 1909 | 5 | — | #1,463 |