Sir Seymour Douglas Tooth (28 January 1904 – 3 July 1982) was a politician in Queensland, Australia.
Tooth was unsuccessful in contesting the 1956 election in the electoral district of Kelvin Grove as the candidate for the Liberal Party.
He was defeated by the sitting Labor member, Bert Turner who had held the seat since 1941.
Tooth held Kelvin Grove until 1960, at which that electorate was abolished being largely replaced by the new electoral district of Ashgrove.
The Liberal party retained Ashgrove in 1974, with the election of their candidate John Greenwood.