Spero is a rare boys' name that was most common in the 1930s and has all but disappeared.
Spero is a boy name. It last appears in U.S. records in 1971. Spero was first reported in SSA data in 1915 and peaked in 1932 (14 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1971 | 6 | — | #4,844 |
| 1970 | 6 | — | #4,657 |
| 1969 | 6 | — | #4,345 |
| 1968 | 5 | — | #4,661 |
| 1966 | 7 | — | #3,500 |
| 1965 | 6 | — | #3,875 |
| 1964 | 7 | — | #3,563 |
| 1963 | 6 | — | #3,992 |
| 1962 | 5 | — | #4,551 |
| 1961 | 6 | — | #4,009 |
| 1959 | 7 | — | #3,576 |
| 1958 | 7 | — | #3,525 |
| 1957 | 6 | — | #3,938 |
| 1955 | 10 | — | #2,736 |
| 1953 | 6 | — | #3,751 |
| 1952 | 9 | — | #2,851 |
| 1951 | 9 | — | #2,828 |
| 1950 | 12 | — | #2,308 |
| 1947 | 8 | — | #3,067 |
| 1946 | 8 | — | #2,891 |
| 1942 | 6 | — | #3,521 |
| 1940 | 6 | — | #3,423 |
| 1933 | 11 | — | #2,354 |
| 1932 | 14 | — | #2,087 |
| 1931 | 10 | — | #2,629 |
| 1930 | 9 | — | #2,990 |
| 1928 | 9 | — | #3,052 |
| 1927 | 5 | — | #4,718 |
| 1926 | 10 | — | #2,884 |
| 1925 | 7 | — | #3,697 |
| 1924 | 12 | — | #2,614 |
| 1923 | 13 | — | #2,429 |
| 1922 | 10 | — | #2,978 |
| 1921 | 6 | — | #4,265 |
| 1920 | 8 | — | #3,461 |
| 1919 | 11 | — | #2,644 |
| 1918 | 8 | — | #3,334 |
| 1917 | 9 | — | #2,924 |
| 1916 | 5 | — | #4,441 |
| 1915 | 5 | — | #4,319 |