| A. Devitt Vanech | |
| Office1: | 2nd United States Deputy Attorney General |
| President1: | Harry S. Truman |
| Term Start1: | 1951 |
| Term End1: | 1952 |
| Predecessor1: | Peyton Ford |
| Successor1: | Ross L. Malone |
| Office2: | 13th United States Assistant Attorney General for the Environment and Natural Resources |
| President2: | Harry S. Truman |
| Term Start2: | 1947 |
| Term End2: | 1951 |
| Predecessor2: | David L. Bazelon |
| Successor2: | William Amory Underhill |
| Birth Name: | Augustus Devitt Vanech |
| Birth Date: | 26 March 1906 |
| Birth Place: | New York City, U.S. |
| Death Place: | Washington, D.C., U.S. |
| Party: | Democratic |
A. Devitt Vanech (March 26, 1906 – September 10, 1967) was an American attorney who served as the United States Assistant Attorney General for the Environment and Natural Resources from 1947 to 1951 and as United States Deputy Attorney General from 1951 to 1952.[1] [2]