Tomáš Dvorák (Czech pronunciation: ['toma?? 'dvor?a?k]), born 11 May 1972 in Gottwaldov (now Zlín), Czechoslovakia, is an athlete from the Czech Republic.
He competed in the decathlon and heptathlon for the team Dukla Prague.
He is a three-time decathlon world champion (1997, 1999, 2001) and a former world record holder (8,994 points scored in Prague, 1999), which is still the fourth best performance of all-time.
This record was broken by Dvorák's compatriot Roman Šebrle in 2001.
Dvorák is the only athlete to score over 8,900 points three times.
Dvorák announced his retirement in July 2008, after he failed to qualify for the Beijing Olympics.