Foxhall Alexander Parker, Sr. (1788 – 23 November 1857) was an officer in the United States Navy.
Born in Westmoreland County, Virginia, Parker joined the Navy as a midshipman on January 1, 1808. During the War of 1812 he was captured at sea. He was commissioned lieutenant on March 9, 1813, commander on March 3, 1825 and captain on March 3, 1835[1].
In 1821, he served in Constitution, and assumed command of her in 1842. In 1851, as Commodore, he commanded the Home Squadron.
In 1814, he married Sarah Jay Bogardus (b. 1794), daughter of Robert Bogardus (1771-1841), and their children were Foxhall A. Parker, Jr. (1821-1879) and William Harwar Parker (1826-1896), who were also prominent naval officers.