Alfonza is a rare variant of Alfonso that was most common in the 1950s and has all but disappeared.
Alfonza is a boy name. It last appears in U.S. records in 2000. Alfonza was first reported in SSA data in 1911 and peaked in 1957 (47 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2000 | 5 | 5 | #10,413 |
| 1999 | 5 | 5 | #9,971 |
| 1998 | 9 | 9 | #6,340 |
| 1995 | 5 | — | #8,916 |
| 1994 | 8 | — | #6,395 |
| 1993 | 11 | — | #5,011 |
| 1992 | 7 | — | #6,685 |
| 1991 | 7 | — | #6,534 |
| 1990 | 12 | — | #4,411 |
| 1989 | 14 | — | #3,814 |
| 1988 | 10 | — | #4,459 |
| 1987 | 14 | — | #3,343 |
| 1986 | 11 | — | #3,890 |
| 1985 | 5 | — | #6,555 |
| 1984 | 18 | — | #2,613 |
| 1983 | 11 | — | #3,632 |
| 1982 | 8 | — | #4,609 |
| 1981 | 16 | — | #2,780 |
| 1980 | 18 | — | #2,617 |
| 1979 | 9 | — | #4,076 |
| 1978 | 19 | — | #2,378 |
| 1977 | 23 | — | #2,064 |
| 1976 | 19 | — | #2,331 |
| 1975 | 11 | — | #3,251 |
| 1974 | 17 | — | #2,358 |
| 1973 | 17 | — | #2,313 |
| 1972 | 13 | — | #2,661 |
| 1971 | 23 | — | #1,862 |
| 1970 | 28 | — | #1,615 |
| 1969 | 23 | — | #1,728 |
| 1968 | 16 | — | #2,033 |
| 1967 | 19 | — | #1,810 |
| 1966 | 22 | — | #1,650 |
| 1965 | 22 | — | #1,669 |
| 1964 | 23 | — | #1,655 |
| 1963 | 29 | — | #1,455 |
| 1962 | 29 | — | #1,455 |
| 1961 | 26 | — | #1,570 |
| 1960 | 38 | — | #1,273 |
| 1959 | 30 | — | #1,440 |
| 1958 | 43 | — | #1,172 |
| 1957 | 47 | — | #1,117 |
| 1956 | 29 | — | #1,445 |
| 1955 | 40 | — | #1,181 |
| 1954 | 41 | — | #1,170 |
| 1953 | 44 | — | #1,102 |
| 1952 | 28 | — | #1,431 |
| 1951 | 36 | — | #1,218 |
| 1950 | 36 | — | #1,203 |
| 1949 | 28 | — | #1,380 |
| 1948 | 43 | — | #1,079 |
| 1947 | 31 | — | #1,316 |
| 1946 | 28 | — | #1,327 |
| 1945 | 36 | — | #1,079 |
| 1944 | 25 | — | #1,329 |
| 1943 | 23 | — | #1,461 |
| 1942 | 19 | — | #1,629 |
| 1941 | 21 | — | #1,486 |
| 1940 | 26 | — | #1,311 |
| 1939 | 20 | — | #1,489 |
| 1938 | 15 | — | #1,821 |
| 1937 | 19 | — | #1,578 |
| 1936 | 25 | — | #1,326 |
| 1935 | 15 | — | #1,838 |
| 1934 | 31 | — | #1,191 |
| 1933 | 21 | — | #1,499 |
| 1932 | 22 | — | #1,510 |
| 1931 | 18 | — | #1,695 |
| 1930 | 20 | — | #1,644 |
| 1929 | 19 | — | #1,731 |
| 1928 | 21 | — | #1,648 |
| 1927 | 11 | — | #2,526 |
| 1926 | 16 | — | #1,983 |
| 1925 | 13 | — | #2,314 |
| 1924 | 11 | — | #2,643 |
| 1923 | 13 | — | #2,331 |
| 1922 | 16 | — | #2,043 |
| 1921 | 18 | — | #1,906 |
| 1920 | 15 | — | #2,134 |
| 1919 | 13 | — | #2,267 |
| 1918 | 10 | — | #2,701 |
| 1917 | 9 | — | #2,735 |
| 1916 | 16 | — | #1,852 |
| 1915 | 8 | — | #2,836 |
| 1914 | 6 | — | #2,926 |
| 1913 | 11 | — | #1,680 |
| 1911 | 8 | — | #1,292 |