Unnamed Defiant class starships

List of unnamed Federation starships of the . 
== Second Fleet ==
In late 2373, at least two of these starships belonged to the Second Fleet. 
While the Dominion attacked Deep Space 9, during the second Battle of Deep Space 9, several of these vessels crossed the Cardassian border and destroyed the Dominion shipyards on Torros III. These ships later joined with the and , following the evacuation of DS9, for a counterattack against the Dominion forces. () 
== Recapture of the USS Prometheus ==
In 2374, these two starships escorted an starship into battle with the , the T'Met and two other Romulan warbirds. 
During the battle one of the ships was damaged by a misguided photon torpedo that was fired from the Prometheus. ()
 
File:Akira and Defiants, 2374.jpg|An Akira-class starship (left) and two Defiant-class escorts arrive
File:Akira and Defiants fire, 2374.jpg|...and then open fire. 
File:Defiant-class shields hit.jpg|One ship hit by friendly fire
== Escort for USS Voyager ==
In mid-2378, these four starships stationed near the Sol system were dispatched by Admiral Owen Paris to a defensive point near an opening Borg transwarp aperture near Earth. 
The ships opened fire on the emerging Borg sphere and assisted in its destruction. Following the emergence of the from the debris, the unnamed Defiant-class starships assisted in escorting Voyager back to Earth. ()
== Section 31 ship ==
This ship, which was equipped with a cloaking device, was slightly modified with a darker hull, elongated (outward) nacelles, and blue colored Bussard collectors. 
In 2381, it retrieved the torpedo casing that William Boimler was launched from following his faked death aboard the . He was subsequently revived and recruited into Section 31. ()
== USS Protostar intercept ==
In 2384, at least five Defiant-class ships were tasked with intercepting the . ()
==Earth Spacedock==
This Defiant class starship was shown in orbit of Sol Station in 2401. ( season 3 end credits)
A total of eighteen ships of the class were a short time thereafter gathered at the same location for the Frontier Day celebrations. ()
bg:Безименни кораби от клас Дефайънт
de:Weitere Raumschiffe der Defiant-Klasse
fr:Vaisseaux inconnus de classe Defiant
Defiant class