Marilu is an uncommon variant of Marla that peaked in 1991 and has grown less common since.
Marilu is a girl name. In 2025 it ranked #7,022 for girl births in the United States (and #12,133 across all names), given to 16 babies. Marilu first appears in 1919 and peaked in 1991 (55 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 16 | 16 | #7,022 |
| 2024 | 15 | 15 | #7,461 |
| 2023 | 17 | 17 | #6,832 |
| 2022 | 11 | 11 | #9,429 |
| 2021 | 18 | 18 | #6,583 |
| 2020 | 11 | 11 | #9,320 |
| 2019 | 11 | 11 | #9,514 |
| 2018 | 16 | 16 | #7,299 |
| 2017 | 13 | 13 | #8,604 |
| 2016 | 23 | 23 | #5,737 |
| 2015 | 14 | 14 | #8,281 |
| 2014 | 28 | 28 | #4,982 |
| 2013 | 23 | 23 | #5,768 |
| 2012 | 18 | 18 | #7,057 |
| 2011 | 22 | 22 | #6,071 |
| 2010 | 13 | 13 | #9,052 |
| 2009 | 22 | 22 | #6,235 |
| 2008 | 27 | 27 | #5,388 |
| 2007 | 27 | 27 | #5,331 |
| 2006 | 35 | 35 | #4,228 |
| 2005 | 31 | 31 | #4,447 |
| 2004 | 21 | 21 | #5,893 |
| 2003 | 31 | 31 | #4,277 |
| 2002 | 36 | 36 | #3,698 |
| 2001 | 30 | 30 | #4,162 |
| 2000 | 22 | 22 | #5,256 |
| 1999 | 31 | 31 | #3,853 |
| 1998 | 22 | 22 | #4,885 |
| 1997 | 39 | — | #3,075 |
| 1996 | 54 | — | #2,414 |
| 1995 | 42 | — | #2,865 |
| 1994 | 51 | — | #2,490 |
| 1993 | 47 | — | #2,625 |
| 1992 | 49 | — | #2,561 |
| 1991 | 55 | — | #2,336 |
| 1990 | 53 | — | #2,366 |
| 1989 | 45 | — | #2,551 |
| 1988 | 38 | — | #2,772 |
| 1987 | 29 | — | #3,230 |
| 1986 | 36 | — | #2,702 |
| 1985 | 41 | — | #2,425 |
| 1984 | 27 | — | #3,200 |
| 1983 | 51 | — | #2,008 |
| 1982 | 46 | — | #2,204 |
| 1981 | 30 | — | #2,956 |
| 1980 | 30 | — | #2,973 |
| 1979 | 26 | — | #3,211 |
| 1978 | 18 | — | #4,009 |
| 1977 | 31 | — | #2,696 |
| 1976 | 28 | — | #2,769 |
| 1975 | 19 | — | #3,586 |
| 1974 | 24 | — | #2,969 |
| 1973 | 15 | — | #4,089 |
| 1972 | 27 | — | #2,644 |
| 1971 | 14 | — | #4,239 |
| 1970 | 23 | — | #2,995 |
| 1969 | 16 | — | #3,553 |
| 1968 | 15 | — | #3,549 |
| 1967 | 15 | — | #3,429 |
| 1966 | 15 | — | #3,348 |
| 1965 | 13 | — | #3,664 |
| 1964 | 14 | — | #3,629 |
| 1963 | 13 | — | #3,738 |
| 1962 | 18 | — | #2,993 |
| 1961 | 26 | — | #2,394 |
| 1960 | 22 | — | #2,620 |
| 1959 | 15 | — | #3,203 |
| 1958 | 17 | — | #2,929 |
| 1957 | 19 | — | #2,701 |
| 1956 | 25 | — | #2,225 |
| 1955 | 27 | — | #2,089 |
| 1954 | 26 | — | #2,108 |
| 1953 | 20 | — | #2,408 |
| 1952 | 21 | — | #2,307 |
| 1951 | 14 | — | #2,884 |
| 1950 | 12 | — | #3,161 |
| 1949 | 21 | — | #2,188 |
| 1948 | 6 | — | #5,042 |
| 1947 | 18 | — | #2,417 |
| 1946 | 17 | — | #2,364 |
| 1945 | 15 | — | #2,303 |
| 1944 | 6 | — | #4,362 |
| 1943 | 11 | — | #2,975 |
| 1942 | 15 | — | #2,373 |
| 1941 | 10 | — | #2,975 |
| 1940 | 17 | — | #2,010 |
| 1939 | 10 | — | #2,859 |
| 1938 | 16 | — | #2,079 |
| 1937 | 14 | — | #2,270 |
| 1936 | 13 | — | #2,347 |
| 1935 | 11 | — | #2,676 |
| 1934 | 10 | — | #2,866 |
| 1933 | 10 | — | #2,807 |
| 1932 | 9 | — | #3,197 |
| 1931 | 14 | — | #2,265 |
| 1930 | 9 | — | #3,238 |
| 1929 | 19 | — | #1,930 |
| 1928 | 11 | — | #2,898 |
| 1927 | 13 | — | #2,647 |
| 1926 | 5 | — | #5,346 |
| 1925 | 6 | — | #4,761 |
| 1924 | 5 | — | #5,585 |
| 1923 | 8 | — | #3,847 |
| 1919 | 5 | — | #5,290 |