| William Wister McKean | |
| Birth Date: | 19 September 1800 |
| Placeofburial Label: | Place of burial |
| Birth Place: | Huntingdon County, Pennsylvania |
| Death Place: | Binghamton, New York |
| Allegiance: | United States of America |
| Serviceyears: | 1814–1862 |
| Rank: | Commodore |
| Battles: | War of 1812 American Civil War |
William Wister McKean (19 September 1800 – 22 April 1865) was an admiral in the United States Navy during the American Civil War. He was noted for his service in the Union blockade that effectively closed Confederate seaports in the Gulf of Mexico.
Born in Pennsylvania, McKean was the grandson of Thomas McKean, the governor of that state.[1]
William Wister McKean was appointed midshipman on 30 November 1814. He served in the Navy from the War of 1812 to the Civil War, when he rose to the rank of flag officer in command of the Gulf Blockading Squadron in early 1862 and later the East Gulf Blockading Squadron. McKean was relieved from active duty on 4 June 1862.[2]
McKean died at Binghamton, New York,[2] 22 April 1865.
Two ships were named in his honor.[2]