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] In 1986, he became the President Pro Tempore of the Mississippi Senate, and served in the position from 1986 to 1992.

[2][3] His tenure in the Senate ended when he lost in the 1991 election.