| William M. Williams | |
| Order1: | 1st and 2nd Representative of the |
| Office1: | Texas Senate, District 1 |
| Termstart1: | February 16, 1846 |
| Termend1: | November 5, 1849 |
| Predecessor1: | District created |
| Successor1: | Matthias Ward |
| Order2: | 3rd Representative of the |
| Office2: | Texas House of Representatives, District 5 |
| Termstart2: | November 5, 1849 |
| Termend2: | November 3, 1851 |
| Predecessor2: | District created |
| Successor2: | William George Washington Jowers |
| Order3: | 4th Representative of the |
| Office3: | Texas Senate, District 2 |
| Termstart3: | November 3, 1851 |
| Termend3: | November 7, 1853 |
| Predecessor3: | Albert Hamilton Latimer |
| Successor3: | Johnson Wren |
| Order4: | 6th Representative of the |
| Office4: | Texas House of Representatives, District 3 |
| Termstart4: | November 5, 1855 |
| Termend4: | November 2, 1857 |
| Predecessor4: | W. J. Bonner |
| Successor4: | John Harmon Crook |
| Birth Date: | March 28, 1809 |
| Birth Place: | Pittsylvania County, Virginia, US |
| Death Place: | Lamar County, Texas, US |
| Spouse: | Eliza Jane Emberson |
| Children: | 3 |
William M. Williams (1809-1859) was a 19th-century Texan politician who served in the Texas House and Senate from 1846 to 1853 and from 1855 to 1857.
Williams was born on March 28, 1809, to currently unknown parents in Pittsylvania, Virginia. He moved to the Republic of Texas on May 2, 1835, at the age of 26. He married Eliza Jane Emberson on September 20, 1839. They had three children together. Eliza died on August 27, 1856. Williams died on September 8, 1859, at the age of 50.[1]