William Dugald MacDougall (June 20, 1868 – March 5, 1943) was a rear admiral of the Fifth Naval District in the United States Navy.

[1] 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.

[2] One of their daughters married Henrik Kauffmann, Denmark's ambassador to the United States during World War II.

[1] He died on March 5, 1943, in Portsmouth, New Hampshire.