İsmet Sezgin (6 January 1928 – 7 December 2016) was a Turkish politician who served as the Deputy Prime Minister of Turkey and Minister of National Defense from 1997 to 1999, as the Speaker of the Grand National Assembly in 1995, as the Minister of the Interior from 1991 to 1993, as the Minister of Finance from 1979 to 1980 and as the Minister of Youth and Sports from 1969 to 1971. Between 1999 and 2002, he served as the Leader of the Democrat Turkey Party, but did not contest any elections.