Tevak was a planet in the Cardassia sector of the Alpha Quadrant, near to Cardassia Prime.
Tevak was the location of a shipyard that Odo and several members of the Cardassian Liberation Front infiltrated and destroyed in 2375. (DS9 episode: "Tacking Into the Wind")
Tevak suffered significantly following the end of the Dominion War, requiring a major rebuilding effort for years to follow. In 2377, Domenica Corsi suggested that Tevak could be attempting to raid relief supplies shipping through Deep Space 10 intended for Cardassia Prime. (CoE eBook: Troubleshooting)