Cardassian pursuit vessels were a type of fighter employed by the Cardassian Union, during the 24th century.
According to Gul Dukat, Cardassian pursuit vessels were years ahead of Starfleet's Danube-class starship design. (DS9: "The Maquis, Part I")
Background
It is unclear in the pursuit vessel and the Cardassian patrol cruiser represent the same class or not. The term "patrol ship" was a Federation desciption for the Hideki class, whereas the term "pursuit vessel" was used by Dukat to describe something comparable to the Danube class. However, because both terms (using the term "patrol cruiser") were used in two separate references in the same episode, it might denote the possibility that these are two different vessel types.