Cleatus is a rare variant of Cletus that was most common in the 1920s and has all but disappeared.
Cleatus is predominantly a boy name. It last appears in U.S. records in 1977. Cleatus was first reported in SSA data in 1907 and peaked in 1924 (30 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1977 | 6 | — | — | #5,240 |
| 1976 | 5 | — | — | #5,755 |
| 1973 | 5 | — | — | #5,224 |
| 1972 | 8 | — | — | #3,683 |
| 1971 | 7 | — | — | #4,042 |
| 1970 | 6 | — | — | #4,327 |
| 1969 | 5 | — | — | #4,499 |
| 1967 | 6 | — | — | #3,621 |
| 1966 | 5 | — | — | #4,041 |
| 1965 | 6 | — | — | #3,595 |
| 1964 | 8 | — | — | #3,086 |
| 1963 | 8 | — | — | #3,088 |
| 1962 | 13 | — | — | #2,296 |
| 1961 | 6 | — | — | #3,709 |
| 1960 | 14 | — | — | #2,225 |
| 1959 | 9 | — | — | #2,858 |
| 1958 | 9 | — | — | #2,862 |
| 1957 | 8 | — | — | #3,061 |
| 1956 | 13 | — | — | #2,289 |
| 1955 | 10 | — | — | #2,600 |
| 1954 | 11 | — | — | #2,479 |
| 1953 | 14 | — | — | #2,111 |
| 1952 | 10 | — | — | #2,551 |
| 1951 | 11 | — | — | #2,394 |
| 1950 | 20 | — | — | #1,664 |
| 1949 | 14 | — | — | #2,044 |
| 1948 | 14 | — | — | #2,046 |
| 1947 | 19 | — | #4,843 | #2,180 |
| 1946 | 20 | — | #4,518 | #1,965 |
| 1945 | 10 | — | — | #2,274 |
| 1944 | 11 | — | — | #2,213 |
| 1943 | 13 | — | — | #2,091 |
| 1942 | 10 | — | — | #2,408 |
| 1941 | 22 | — | — | #1,455 |
| 1940 | 12 | — | — | #2,099 |
| 1939 | 20 | — | — | #1,499 |
| 1938 | 15 | — | — | #1,837 |
| 1937 | 10 | — | — | #2,351 |
| 1936 | 14 | — | — | #1,886 |
| 1935 | 22 | — | — | #1,458 |
| 1934 | 13 | — | — | #2,034 |
| 1933 | 15 | — | — | #1,841 |
| 1932 | 14 | — | — | #2,014 |
| 1931 | 29 | — | #3,945 | #1,462 |
| 1930 | 28 | — | #4,125 | #1,565 |
| 1929 | 16 | — | — | #1,944 |
| 1928 | 27 | — | #4,844 | #1,614 |
| 1927 | 19 | — | — | #1,813 |
| 1926 | 29 | — | — | #1,358 |
| 1925 | 29 | — | #3,733 | #1,693 |
| 1924 | 30 | — | — | #1,359 |
| 1923 | 33 | — | #4,476 | #1,431 |
| 1922 | 21 | — | #5,153 | #2,058 |
| 1921 | 18 | — | — | #1,917 |
| 1920 | 33 | — | #3,677 | #1,511 |
| 1919 | 22 | — | #4,960 | #1,892 |
| 1918 | 26 | — | #4,959 | #1,666 |
| 1917 | 20 | — | — | #1,652 |
| 1916 | 22 | — | #4,543 | #1,784 |
| 1915 | 13 | — | — | #2,088 |
| 1914 | 14 | — | — | #1,702 |
| 1913 | 13 | — | — | #1,510 |
| 1912 | 15 | — | — | #1,232 |
| 1911 | 11 | — | — | #1,055 |
| 1907 | 6 | — | — | #1,224 |