The baby name Marlys appears in baby name data for the United States from 1914 to 1969. It was most popular in 1937 with 460 babies given the name.
Over the period shown, Marlys has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1914 | 10 |
| 1915 | 27 |
| 1917 | 25 |
| 1918 | 28 |
| 1919 | 52 |
| 1920 | 57 |
| 1921 | 62 |
| 1922 | 62 |
| 1923 | 99 |
| 1924 | 93 |
| 1925 | 128 |
| 1926 | 138 |
| 1927 | 201 |
| 1928 | 208 |
| 1929 | 207 |
| 1930 | 264 |
| 1931 | 328 |
| 1932 | 314 |
| 1933 | 401 |
| 1934 | 452 |
| 1935 | 427 |
| 1936 | 452 |
| 1937 | 460 |
| 1938 | 445 |
| 1939 | 437 |
| 1940 | 377 |
| 1941 | 354 |
| 1942 | 328 |
| 1943 | 330 |
| 1944 | 227 |
| 1945 | 247 |
| 1946 | 243 |
| 1947 | 288 |
| 1948 | 236 |
| 1949 | 216 |
| 1950 | 216 |
| 1951 | 221 |
| 1952 | 191 |
| 1953 | 217 |
| 1954 | 171 |
| 1955 | 111 |
| 1956 | 130 |
| 1957 | 112 |
| 1958 | 88 |
| 1959 | 105 |
| 1960 | 70 |
| 1961 | 69 |
| 1962 | 52 |
| 1963 | 45 |
| 1964 | 65 |
| 1965 | 9 |
| 1967 | 19 |
| 1968 | 10 |
| 1969 | 5 |