Cy is an uncommon boys' name that peaked in 2010 and has grown less common since.
Cy is predominantly a boy name. In 2025 it ranked #2,540 for boy births in the United States (and #5,487 across all names), given to 52 babies. Cy first appears in 1902 and peaked in 2010 (117 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 52 | 52 | — | #2,540 |
| 2024 | 60 | 60 | — | #2,351 |
| 2023 | 82 | 82 | #12,430 | #2,015 |
| 2022 | 58 | 58 | — | #2,416 |
| 2021 | 45 | 45 | — | #2,785 |
| 2020 | 65 | 65 | — | #2,144 |
| 2019 | 72 | 72 | — | #2,023 |
| 2018 | 68 | 68 | — | #2,086 |
| 2017 | 45 | 45 | — | #2,721 |
| 2016 | 68 | 68 | #14,743 | #2,186 |
| 2015 | 61 | 61 | — | #2,215 |
| 2014 | 71 | 71 | — | #2,006 |
| 2013 | 99 | 99 | — | #1,572 |
| 2012 | 109 | 109 | — | #1,479 |
| 2011 | 99 | 99 | — | #1,573 |
| 2010 | 117 | 117 | — | #1,416 |
| 2009 | 99 | 99 | — | #1,607 |
| 2008 | 104 | 104 | — | #1,545 |
| 2007 | 113 | 113 | — | #1,434 |
| 2006 | 105 | 105 | — | #1,461 |
| 2005 | 111 | 111 | #17,082 | #1,403 |
| 2004 | 88 | 88 | — | #1,519 |
| 2003 | 68 | 68 | — | #1,768 |
| 2002 | 55 | 55 | — | #2,003 |
| 2001 | 74 | 74 | — | #1,603 |
| 2000 | 80 | 80 | — | #1,504 |
| 1999 | 76 | 76 | #14,925 | #1,560 |
| 1998 | 61 | 61 | — | #1,682 |
| 1997 | 45 | — | — | #1,998 |
| 1996 | 46 | — | — | #1,938 |
| 1995 | 52 | — | — | #1,712 |
| 1994 | 48 | — | — | #1,801 |
| 1993 | 48 | — | — | #1,772 |
| 1992 | 44 | — | — | #1,851 |
| 1991 | 46 | — | — | #1,750 |
| 1990 | 40 | — | — | #1,909 |
| 1989 | 35 | — | — | #2,038 |
| 1988 | 24 | — | — | #2,451 |
| 1987 | 29 | — | — | #2,066 |
| 1986 | 38 | — | — | #1,665 |
| 1985 | 32 | — | — | #1,841 |
| 1984 | 27 | — | — | #1,988 |
| 1983 | 38 | — | — | #1,567 |
| 1982 | 40 | — | — | #1,544 |
| 1981 | 45 | — | — | #1,414 |
| 1980 | 38 | — | — | #1,576 |
| 1979 | 34 | — | — | #1,680 |
| 1978 | 27 | — | — | #1,876 |
| 1977 | 34 | — | — | #1,614 |
| 1976 | 38 | — | — | #1,455 |
| 1975 | 37 | — | — | #1,459 |
| 1974 | 33 | — | — | #1,522 |
| 1973 | 30 | — | — | #1,590 |
| 1972 | 27 | — | — | #1,689 |
| 1971 | 19 | — | — | #2,139 |
| 1970 | 21 | — | — | #1,948 |
| 1969 | 15 | — | — | #2,235 |
| 1968 | 18 | — | — | #1,906 |
| 1967 | 14 | — | — | #2,163 |
| 1966 | 21 | — | — | #1,689 |
| 1965 | 17 | — | — | #1,936 |
| 1964 | 21 | — | — | #1,747 |
| 1963 | 22 | — | — | #1,706 |
| 1962 | 23 | — | — | #1,676 |
| 1961 | 22 | — | — | #1,742 |
| 1960 | 23 | — | — | #1,699 |
| 1959 | 20 | — | — | #1,815 |
| 1958 | 11 | — | — | #2,533 |
| 1957 | 21 | — | — | #1,763 |
| 1956 | 25 | — | — | #1,575 |
| 1955 | 32 | — | — | #1,346 |
| 1954 | 27 | — | — | #1,469 |
| 1953 | 20 | — | — | #1,722 |
| 1952 | 21 | — | — | #1,672 |
| 1951 | 15 | — | — | #1,995 |
| 1950 | 19 | — | — | #1,710 |
| 1949 | 11 | — | — | #2,366 |
| 1948 | 6 | — | — | #3,386 |
| 1947 | 15 | — | — | #2,005 |
| 1946 | 10 | — | — | #2,434 |
| 1945 | 9 | — | — | #2,429 |
| 1944 | 8 | — | — | #2,678 |
| 1943 | 5 | — | — | #3,648 |
| 1942 | 7 | — | — | #2,989 |
| 1941 | 7 | — | — | #2,927 |
| 1939 | 7 | — | — | #2,884 |
| 1938 | 8 | — | — | #2,689 |
| 1936 | 7 | — | — | #2,933 |
| 1935 | 5 | — | — | #3,777 |
| 1934 | 11 | — | — | #2,297 |
| 1932 | 8 | — | — | #2,896 |
| 1931 | 8 | — | — | #2,906 |
| 1930 | 7 | — | — | #3,360 |
| 1929 | 6 | — | — | #3,638 |
| 1928 | 8 | — | — | #3,132 |
| 1926 | 8 | — | — | #3,192 |
| 1924 | 9 | — | — | #3,075 |
| 1923 | 9 | — | — | #2,993 |
| 1922 | 13 | — | — | #2,367 |
| 1921 | 5 | — | — | #4,489 |
| 1920 | 5 | — | — | #4,445 |
| 1919 | 10 | — | — | #2,717 |
| 1918 | 11 | — | — | #2,581 |
| 1917 | 5 | — | — | #4,108 |
| 1916 | 10 | — | — | #2,589 |
| 1915 | 16 | — | — | #1,806 |
| 1914 | 7 | — | — | #2,713 |
| 1913 | 6 | — | — | #2,561 |
| 1912 | 11 | — | — | #1,548 |
| 1911 | 5 | — | — | #1,798 |
| 1907 | 5 | — | — | #1,388 |
| 1902 | 6 | — | — | #1,037 |