Thomas Dwayne Dempsey (born May 8, 1967) is an American restaurateur and former Republican politician,[1] previously serving in the Missouri Senate as President Pro Tempore.

Dempsey is now a partner at the Gate Way Group, a multi-state government relations firm based in St. Louis.

degree from Rockhurst University in political science, where he was a member of Tau Kappa Epsilon fraternity.

[2] Dempsey is the former general manager of The Columns Banquet and Conference Center in St. Charles, Missouri.

[3] In January 2013, Dempsey was elected as President Pro Tem of the Missouri Senate.