Dukat is a fictional character from the television series Star Trek: Deep Space Nine. A member of the fictional Cardassian species, he is introduced as the former overseer of the series' namesake space station but goes on to become the leader of his species' governing body, the Cardassian Union. At times an enemy, while at others an ally of Benjamin Sisko, Dukat appears in 35 of the series' 176 episodes. He was portrayed by Marc Alaimo throughout. Dukat became a fan favorite among Star Trek fans and he is widely considered to be one of the most iconic villains in the Star Trek franchise.

Star Trek: Deep Space Nine (DS9) is an American science fiction television series created by Rick Berman and Michael Piller. The fourth series in the Star Trek media franchise, it originally aired in syndication from January 3, 1993, to June 2, 1999, spanning 176 episodes over seven seasons. Set in the 24th century, when Earth is part of a United Federation of Planets, its narrative is centered on the eponymous space station Deep Space Nine, located adjacent to a wormhole connecting Federation territory to the Gamma Quadrant on the far side of the Milky Way galaxy.