Doil is a very rare variant of Doyle that was most common in the 1920s and has all but disappeared.
Doil is a boy name. It last appears in U.S. records in 1949. Doil first appears in 1912 and peaked in 1921 (15 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1949 | 5 | — | #3,821 |
| 1947 | 5 | — | #3,867 |
| 1943 | 8 | — | #2,788 |
| 1941 | 6 | — | #3,229 |
| 1940 | 10 | — | #2,364 |
| 1939 | 5 | — | #3,616 |
| 1937 | 8 | — | #2,733 |
| 1936 | 5 | — | #3,677 |
| 1935 | 12 | — | #2,161 |
| 1934 | 13 | — | #2,045 |
| 1933 | 12 | — | #2,121 |
| 1932 | 11 | — | #2,360 |
| 1931 | 7 | — | #3,175 |
| 1930 | 7 | — | #3,372 |
| 1929 | 5 | — | #4,111 |
| 1928 | 8 | — | #3,148 |
| 1927 | 9 | — | #2,964 |
| 1926 | 14 | — | #2,223 |
| 1925 | 13 | — | #2,336 |
| 1924 | 10 | — | #2,862 |
| 1923 | 10 | — | #2,808 |
| 1922 | 9 | — | #3,074 |
| 1921 | 15 | — | #2,175 |
| 1920 | 12 | — | #2,492 |
| 1919 | 12 | — | #2,408 |
| 1918 | 9 | — | #2,932 |
| 1917 | 12 | — | #2,321 |
| 1916 | 5 | — | #4,068 |
| 1915 | 5 | — | #3,973 |
| 1912 | 5 | — | #2,641 |