Mat is a rare variant of Mateo that was most common in the 1910s and has all but disappeared.
Mat is a boy name. It last appears in U.S. records in 2013. Mat was first reported in SSA data in 1880 and peaked in 1917 (21 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2013 | 5 | 5 | #13,370 |
| 2010 | 6 | 6 | #11,692 |
| 1985 | 5 | — | #7,207 |
| 1979 | 6 | — | #5,806 |
| 1976 | 9 | — | #3,903 |
| 1975 | 7 | — | #4,621 |
| 1974 | 8 | — | #4,058 |
| 1972 | 10 | — | #3,273 |
| 1971 | 8 | — | #3,842 |
| 1970 | 10 | — | #3,200 |
| 1969 | 11 | — | #2,800 |
| 1968 | 15 | — | #2,160 |
| 1967 | 14 | — | #2,219 |
| 1965 | 10 | — | #2,713 |
| 1964 | 12 | — | #2,507 |
| 1963 | 11 | — | #2,623 |
| 1962 | 9 | — | #2,977 |
| 1961 | 15 | — | #2,207 |
| 1960 | 12 | — | #2,493 |
| 1959 | 17 | — | #2,016 |
| 1958 | 9 | — | #2,959 |
| 1957 | 11 | — | #2,594 |
| 1956 | 6 | — | #3,796 |
| 1954 | 6 | — | #3,691 |
| 1950 | 6 | — | #3,560 |
| 1947 | 6 | — | #3,613 |
| 1946 | 6 | — | #3,399 |
| 1943 | 5 | — | #3,866 |
| 1942 | 8 | — | #2,860 |
| 1940 | 6 | — | #3,344 |
| 1939 | 5 | — | #3,797 |
| 1938 | 7 | — | #3,063 |
| 1935 | 6 | — | #3,512 |
| 1934 | 5 | — | #4,016 |
| 1933 | 10 | — | #2,480 |
| 1932 | 10 | — | #2,570 |
| 1931 | 12 | — | #2,287 |
| 1930 | 5 | — | #4,354 |
| 1929 | 11 | — | #2,545 |
| 1928 | 13 | — | #2,348 |
| 1927 | 16 | — | #2,097 |
| 1926 | 13 | — | #2,376 |
| 1925 | 11 | — | #2,694 |
| 1924 | 14 | — | #2,310 |
| 1923 | 18 | — | #1,919 |
| 1922 | 13 | — | #2,432 |
| 1921 | 11 | — | #2,739 |
| 1920 | 9 | — | #3,122 |
| 1919 | 15 | — | #2,116 |
| 1918 | 19 | — | #1,804 |
| 1917 | 21 | — | #1,623 |
| 1916 | 13 | — | #2,219 |
| 1915 | 11 | — | #2,398 |
| 1914 | 9 | — | #2,388 |
| 1913 | 10 | — | #1,898 |
| 1912 | 8 | — | #1,992 |
| 1911 | 8 | — | #1,347 |
| 1910 | 6 | — | #1,523 |
| 1909 | 7 | — | #1,231 |
| 1907 | 7 | — | #1,163 |
| 1905 | 8 | — | #977 |
| 1902 | 9 | — | #840 |
| 1900 | 6 | — | #1,262 |
| 1899 | 8 | — | #835 |
| 1898 | 9 | — | #787 |
| 1897 | 5 | — | #1,173 |
| 1896 | 5 | — | #1,208 |
| 1895 | 10 | — | #729 |
| 1894 | 5 | — | #1,184 |
| 1893 | 7 | — | #886 |
| 1892 | 7 | — | #920 |
| 1890 | 8 | — | #792 |
| 1889 | 6 | — | #946 |
| 1888 | 10 | — | #681 |
| 1887 | 8 | — | #720 |
| 1886 | 11 | — | #591 |
| 1885 | 13 | — | #539 |
| 1884 | 17 | — | #461 |
| 1883 | 7 | — | #773 |
| 1882 | 12 | — | #568 |
| 1881 | 15 | — | #453 |
| 1880 | 16 | — | #455 |