Brack is a rare variant of Brock that was most common in the 1920s and has all but disappeared.
Brack is a boy name. It last appears in U.S. records in 2004. Brack first appears in 1910 and peaked in 1922 (11 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2004 | 5 | 5 | #11,573 |
| 1996 | 6 | — | #8,067 |
| 1994 | 6 | — | #7,882 |
| 1987 | 9 | — | #4,608 |
| 1986 | 6 | — | #6,013 |
| 1985 | 5 | — | #6,634 |
| 1983 | 6 | — | #5,563 |
| 1979 | 9 | — | #4,109 |
| 1978 | 6 | — | #5,135 |
| 1975 | 6 | — | #4,860 |
| 1974 | 9 | — | #3,590 |
| 1973 | 8 | — | #3,742 |
| 1970 | 10 | — | #3,094 |
| 1969 | 9 | — | #3,085 |
| 1966 | 5 | — | #4,003 |
| 1965 | 9 | — | #2,803 |
| 1964 | 10 | — | #2,682 |
| 1963 | 7 | — | #3,345 |
| 1962 | 8 | — | #3,067 |
| 1960 | 6 | — | #3,697 |
| 1959 | 5 | — | #4,049 |
| 1958 | 9 | — | #2,846 |
| 1957 | 11 | — | #2,506 |
| 1955 | 5 | — | #3,938 |
| 1953 | 8 | — | #2,931 |
| 1952 | 6 | — | #3,404 |
| 1951 | 5 | — | #3,769 |
| 1948 | 6 | — | #3,356 |
| 1947 | 8 | — | #2,898 |
| 1946 | 6 | — | #3,211 |
| 1944 | 7 | — | #2,890 |
| 1943 | 5 | — | #3,605 |
| 1941 | 6 | — | #3,181 |
| 1939 | 7 | — | #2,860 |
| 1938 | 7 | — | #2,894 |
| 1937 | 9 | — | #2,508 |
| 1936 | 6 | — | #3,188 |
| 1935 | 9 | — | #2,547 |
| 1934 | 5 | — | #3,727 |
| 1933 | 8 | — | #2,763 |
| 1931 | 6 | — | #3,429 |
| 1929 | 5 | — | #4,030 |
| 1927 | 10 | — | #2,717 |
| 1926 | 7 | — | #3,426 |
| 1925 | 8 | — | #3,181 |
| 1924 | 8 | — | #3,298 |
| 1923 | 10 | — | #2,787 |
| 1922 | 11 | — | #2,646 |
| 1921 | 5 | — | #4,411 |
| 1920 | 6 | — | #3,874 |
| 1919 | 8 | — | #3,139 |
| 1918 | 5 | — | #4,247 |
| 1917 | 7 | — | #3,259 |
| 1916 | 10 | — | #2,569 |
| 1915 | 6 | — | #3,451 |
| 1912 | 5 | — | #2,590 |
| 1910 | 5 | — | #1,619 |