| William Dugald MacDougall | |
| Birth Date: | 20 June 1868 |
| Birth Place: | Auburn, New York |
| Death Place: | Portsmouth, New Hampshire |
| Placeofburial: | Arlington National Cemetery |
| Allegiance: |  United States |
| Rank: | Rear admiral |
| Spouse: | Charlotte Sackett Stone |
| Children: | 2 |
| Relations: | Henrik Kauffmann Mason Sears |
William Dugald MacDougall (June 20, 1868 – March 5, 1943) was a rear admiral of the Fifth Naval District in the United States Navy.
He was born at Auburn, New York, on June 20, 1868, to Clinton Dugald MacDougall and Eva Sabine. He graduated from the United States Naval Academy in 1889. He married Charlotte Sackett Stone.[1] One of their daughters married Henrik Kauffmann, Denmark's ambassador to the United States during World War II.
He retired on July 1, 1932.[2] He died on March 5, 1943, in Portsmouth, New Hampshire. He was buried at Arlington National Cemetery.