Regena is an uncommon variant of Regina that was most common in the 1940s and has all but disappeared.
Regena is a girl name. It last appears in U.S. records in 2008. Regena was first reported in SSA data in 1904 and peaked in 1948 (85 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2008 | 8 | 8 | #13,551 |
| 2002 | 7 | 7 | #13,310 |
| 2000 | 6 | 6 | #14,606 |
| 1996 | 5 | — | #15,294 |
| 1994 | 8 | — | #10,299 |
| 1992 | 10 | — | #8,572 |
| 1990 | 12 | — | #7,190 |
| 1989 | 9 | — | #8,566 |
| 1988 | 11 | — | #7,003 |
| 1987 | 9 | — | #7,836 |
| 1986 | 18 | — | #4,496 |
| 1985 | 8 | — | #8,120 |
| 1984 | 13 | — | #5,460 |
| 1983 | 22 | — | #3,645 |
| 1982 | 22 | — | #3,725 |
| 1981 | 12 | — | #5,812 |
| 1980 | 23 | — | #3,579 |
| 1979 | 29 | — | #2,974 |
| 1978 | 30 | — | #2,785 |
| 1977 | 35 | — | #2,501 |
| 1976 | 25 | — | #2,983 |
| 1975 | 48 | — | #1,898 |
| 1974 | 37 | — | #2,204 |
| 1973 | 39 | — | #2,084 |
| 1972 | 53 | — | #1,692 |
| 1971 | 41 | — | #2,051 |
| 1970 | 63 | — | #1,557 |
| 1969 | 56 | — | #1,605 |
| 1968 | 68 | — | #1,362 |
| 1967 | 58 | — | #1,471 |
| 1966 | 84 | — | #1,168 |
| 1965 | 55 | — | #1,512 |
| 1964 | 71 | — | #1,340 |
| 1963 | 56 | — | #1,501 |
| 1962 | 73 | — | #1,297 |
| 1961 | 54 | — | #1,546 |
| 1960 | 66 | — | #1,361 |
| 1959 | 57 | — | #1,431 |
| 1958 | 51 | — | #1,510 |
| 1957 | 59 | — | #1,387 |
| 1956 | 69 | — | #1,258 |
| 1955 | 68 | — | #1,228 |
| 1954 | 73 | — | #1,177 |
| 1953 | 67 | — | #1,186 |
| 1952 | 72 | — | #1,115 |
| 1951 | 79 | — | #1,049 |
| 1950 | 66 | — | #1,141 |
| 1949 | 75 | — | #1,036 |
| 1948 | 85 | — | #947 |
| 1947 | 40 | — | #1,506 |
| 1946 | 22 | — | #2,012 |
| 1945 | 37 | — | #1,328 |
| 1944 | 20 | — | #1,956 |
| 1943 | 33 | — | #1,462 |
| 1942 | 22 | — | #1,853 |
| 1941 | 16 | — | #2,173 |
| 1940 | 19 | — | #1,886 |
| 1939 | 17 | — | #2,022 |
| 1938 | 15 | — | #2,201 |
| 1937 | 19 | — | #1,838 |
| 1936 | 22 | — | #1,630 |
| 1935 | 24 | — | #1,537 |
| 1934 | 15 | — | #2,157 |
| 1933 | 17 | — | #1,959 |
| 1932 | 21 | — | #1,740 |
| 1931 | 13 | — | #2,399 |
| 1930 | 14 | — | #2,397 |
| 1929 | 15 | — | #2,283 |
| 1928 | 11 | — | #2,920 |
| 1927 | 16 | — | #2,323 |
| 1926 | 18 | — | #2,140 |
| 1925 | 22 | — | #1,882 |
| 1924 | 20 | — | #2,052 |
| 1923 | 14 | — | #2,570 |
| 1922 | 24 | — | #1,777 |
| 1921 | 14 | — | #2,610 |
| 1920 | 28 | — | #1,577 |
| 1919 | 20 | — | #1,911 |
| 1918 | 19 | — | #2,017 |
| 1917 | 17 | — | #2,084 |
| 1916 | 8 | — | #3,492 |
| 1915 | 13 | — | #2,362 |
| 1914 | 8 | — | #2,825 |
| 1912 | 7 | — | #2,588 |
| 1904 | 5 | — | #2,122 |