| Glen Deweese | |
| Office1: | Member of the Mississippi State Senate |
| Termstart1: | January 1976 |
| Termend1: | January 1992 |
| Preceded1: | Bert White |
| Constituency1: | 19th district (1976–1980) 33rd district (1980–1992) |
| Succeeded1: | Joe Clay Hamilton |
| Party: | Democratic |
| Spouse: | Janice Thomas |
| Birth Name: | Glen Sennett Deweese |
| Birth Date: | 5 January 1932 |
| Birth Place: | Philadelphia, Mississippi, U.S. |
| Death Place: | Meridian, Mississippi, U.S. |
| Office: | President pro tempore of the Mississippi State Senate |
| Termstart: | January 1986 |
| Termend: | January 1992 |
| Preceded: | Tommy Brooks |
| Succeeded: | Ollie Mohamed |
Glen Sennett Deweese (January 5, 1932 – September 27, 2001) was an American convenience store owner and Democratic politician. He was a member of the Mississippi State Senate from 1976 to 1992, and its president pro tempore from 1986 to 1992.
Glen Sennett Deweese was born on January 5, 1932, in Philadelphia, Mississippi.[1] [2] He was first elected to the Mississippi State Senate in 1975 for the 1976-1980 term. In 1986, he became the President Pro Tempore of the Mississippi Senate, and served in the position from 1986 to 1992.[3] His tenure in the Senate ended when he lost in the 1991 election. He died on September 27, 2001, in Meridian, Mississippi.