William D. Porter

William David Porter
Born	(1808-03-10)March 10, 1808 New Orleans, Louisiana, US
Died	May 1, 1864(1864-05-01) (aged 56) New York City, US
Allegiance	United States
Service/branch	United States Navy
Years of service	1823–1855 1859–1864
Rank	Commodore
Commands	USS St. Mary's USS Essex
Battles/wars	American Civil War
Relations	David Porter (father) David Dixon Porter (brother) David Farragut (adopted brother)

William David Porter (10 March 1808 – 1 May 1864) was a flag officer of the United States Navy. He was the son of Commodore David Porter (1780–1843) and brother of Admiral David Dixon Porter (1813–1891) as well as foster brother of Admiral David Farragut (1801–1870). His son, William David Porter, Jr. (1840-1902), served in the Confederate Navy.