| Marshall Wright | |
| Office: | 12th United States Assistant Secretary of State for Legislative Affairs |
| President: | Richard Nixon |
| Term Start: | May 29, 1973 |
| Term End: | February 2, 1974 |
| Predecessor: | David Manker Abshire |
| Successor: | A. Linwood Holton Jr. |
| Birth Name: | William Marshall Wright |
| Birth Date: | 14 July 1926 |
| Birth Place: | El Dorado, Arkansas, U.S. |
| Death Date: | [1] |
| Death Place: | Falls Church, Virginia, U.S. |
William Marshall Wright (July 14, 1926 – December 31, 2013)[2] was United States Assistant Secretary of State for Legislative Affairs from May 29, 1973, until February 2, 1974. He had previously been senior staff member at the National Security Council. He was a resident of Arkansas.