| William Henry Sparks | |
| Spouse: | unknown |
| Birth Date: | 16 January 1800 |
| Birth Place: | St Simon's Island, Georgia |
| Death Place: | Marietta, Georgia |
| Nationality: | American |
| Occupation: | Lawyer, Writer |
William Henry Sparks (January 16, 1800 – January 13, 1882) was an American lawyer and occasional poet famous now only for his autobiographical memoir.
Sparks was born on St. Simon's Island, Georgia, and grew up in Greene County, Georgia. After studying law at Litchfield Law School in Connecticut, he opened a law practice in Greensboro, Georgia. He was elected to the Georgia legislature. By 1830 he moved to Natchez, Mississippi, to raise sugar. From 1852–1861 he had a practice of law in New Orleans, Louisiana, in partnership with Judah P. Benjamin, later a cabinet officer of the Confederate States of America and then a successful attorney in England. Sparks published his autobiographical "The Memories of Fifty Years" in 1870. The work consists of a wide variety of observations Sparks kept note of during his lifetime. Sparks died in Marietta, Georgia, on January 13, 1882.