| William Smith | |
| Image Name: | Peale 75 11 v1 KW 200904 XL-808x1024.jpg |
| State: | Maryland |
| District: | 4th |
| Party: | Anti-Administration |
| Term Start: | March 4, 1789 |
| Term End: | March 3, 1791 |
| Preceded: | Nobody (District Created) |
| Succeeded: | Samuel Sterett |
| Birth Date: | 12 April 1728 |
| Birth Place: | Donegal Township, Province of Pennsylvania, British America |
| Death Place: | Baltimore, Maryland, U.S. |
| Caption: | Smith and grandson Robert Smith Williams, portrait by Charles Willson Peale |
William Smith (April 12, 1728 – March 27, 1814) was an American politician and representative of the fourth congressional district of Maryland in the United States House of Representatives.
Born on April 12, 1728, in the Province of Pennsylvania in what is now Donegal Township, Lancaster County, Smith moved to Baltimore, Maryland in 1761.
Smith's daughter, Mary Smith, later married General Otho Holland Williams, the founder of Williamsport, Maryland.
Appointed to the committee of correspondence in 1774 and to the committee of observation in 1775, Smith also served in the Revolutionary War as deputy adjutant general to Generals Horatio Gates and Nathanael Greene.
In 1777, Smith was appointed by the Continental Congress to the naval board. That same year, Smith was chosen as a Maryland delegate to the Continental Congress.
He subsequently pursued a career as a merchant, and was then elected to the 1st United States Congress, serving in that capacity from March 4, 1789, until March 3, 1791.
Smith was subsequently appointed as the first auditor of the United States Treasury, and served in that post from July 16, 1791, to November 27, 1791. He then returned to local politics and was elected to the Maryland Senate in 1801.
Smith died in Baltimore and was interred in the Old Westminster Graveyard.