Reo is a rare variant of Rey that peaked in 1919 and has grown less common since.
Reo is predominantly a boy name. In 2025 it ranked #7,102 for boy births in the United States (and #14,925 across all names), given to 12 babies. Reo first appears in 1912 and peaked in 1917 (18 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 12 | 12 | — | #7,102 |
| 2024 | 15 | 15 | — | #6,123 |
| 2023 | 10 | 10 | — | #8,132 |
| 2022 | 16 | 16 | — | #5,814 |
| 2021 | 17 | 17 | — | #5,505 |
| 2020 | 12 | 12 | — | #6,949 |
| 2019 | 16 | 16 | — | #5,745 |
| 2018 | 10 | 10 | — | #8,034 |
| 2017 | 6 | 6 | — | #11,900 |
| 2016 | 10 | 10 | — | #8,038 |
| 2015 | 8 | 8 | — | #9,392 |
| 2014 | 13 | 13 | — | #6,553 |
| 2013 | 12 | 12 | — | #6,935 |
| 2012 | 5 | 5 | — | #13,781 |
| 2011 | 5 | 5 | — | #13,890 |
| 2010 | 12 | 12 | — | #7,002 |
| 2009 | 13 | 13 | — | #6,729 |
| 2008 | 5 | 5 | — | #14,156 |
| 2007 | 10 | 10 | — | #8,043 |
| 2006 | 6 | 6 | — | #11,742 |
| 2005 | 8 | 8 | — | #8,927 |
| 2004 | 6 | 6 | — | #11,040 |
| 2002 | 7 | 7 | — | #9,176 |
| 2001 | 7 | 7 | — | #9,020 |
| 2000 | 8 | 8 | — | #8,041 |
| 1999 | 6 | 6 | — | #9,634 |
| 1998 | 8 | 8 | — | #7,399 |
| 1997 | 12 | — | — | #5,203 |
| 1996 | 8 | — | — | #6,974 |
| 1995 | 8 | — | — | #6,848 |
| 1994 | 12 | — | — | #5,051 |
| 1993 | 9 | — | — | #6,121 |
| 1992 | 7 | — | — | #7,231 |
| 1991 | 12 | — | — | #4,704 |
| 1990 | 13 | — | — | #4,357 |
| 1989 | 8 | — | — | #6,098 |
| 1988 | 7 | — | — | #6,286 |
| 1987 | 7 | — | — | #5,963 |
| 1986 | 10 | — | — | #4,401 |
| 1985 | 12 | — | #12,005 | #5,630 |
| 1984 | 6 | — | — | #6,163 |
| 1983 | 9 | — | — | #4,418 |
| 1982 | 9 | — | — | #4,507 |
| 1981 | 7 | — | — | #5,361 |
| 1980 | 8 | — | — | #4,849 |
| 1979 | 9 | — | — | #4,324 |
| 1975 | 5 | — | — | #6,130 |
| 1973 | 8 | — | — | #3,976 |
| 1970 | 7 | — | — | #4,149 |
| 1965 | 5 | — | — | #4,320 |
| 1963 | 8 | — | — | #3,266 |
| 1961 | 10 | — | — | #2,862 |
| 1959 | 7 | — | — | #3,533 |
| 1957 | 7 | — | — | #3,495 |
| 1956 | 7 | — | — | #3,474 |
| 1955 | 11 | — | — | #2,531 |
| 1954 | 12 | — | — | #2,414 |
| 1953 | 5 | — | — | #4,241 |
| 1948 | 8 | — | — | #2,962 |
| 1947 | 5 | — | — | #4,157 |
| 1946 | 7 | — | — | #3,118 |
| 1945 | 5 | — | — | #3,682 |
| 1944 | 9 | — | — | #2,602 |
| 1943 | 6 | — | — | #3,479 |
| 1942 | 7 | — | — | #3,156 |
| 1941 | 7 | — | — | #3,083 |
| 1940 | 9 | — | — | #2,638 |
| 1938 | 6 | — | — | #3,460 |
| 1935 | 6 | — | — | #3,582 |
| 1934 | 8 | — | — | #2,909 |
| 1932 | 5 | — | — | #4,178 |
| 1931 | 7 | — | — | #3,336 |
| 1930 | 7 | — | — | #3,527 |
| 1929 | 7 | — | — | #3,491 |
| 1928 | 11 | — | — | #2,616 |
| 1927 | 10 | — | — | #2,869 |
| 1926 | 12 | — | — | #2,535 |
| 1925 | 15 | — | — | #2,166 |
| 1924 | 8 | — | — | #3,446 |
| 1923 | 16 | — | — | #2,104 |
| 1922 | 11 | — | — | #2,769 |
| 1921 | 17 | — | — | #2,039 |
| 1920 | 17 | — | #5,625 | #2,577 |
| 1919 | 22 | — | #4,714 | #2,042 |
| 1918 | 18 | — | #4,726 | #2,507 |
| 1917 | 18 | — | — | #1,799 |
| 1916 | 10 | — | — | #2,694 |
| 1915 | 11 | — | — | #2,425 |
| 1914 | 9 | — | — | #2,419 |
| 1913 | 13 | — | #3,607 | #2,232 |
| 1912 | 7 | — | — | #2,227 |