The Battle of Rigel was an engagement between Federation Alliance and Dominion forces in the Rigel system, which took place in early 2375.

One of the participants in the battle was the USS Enterprise-E, who lost several crewmembers in the battle, including Andrew Powell. (TTN novel: Taking Wing) The USS Kelly was among the vessels lost in this engagement.

In the aftermath of the battle, the Orion Syndicate sent ships into the debris field to scavenge whatever they could before Starfleet could recover its own technology. One such item was an isolation suit from the USS Kelly, which found its way through the black market to Hiziki Gard. (DS9 novel: Trill: Unjoined)

Battles of the Dominion War

Second Battle of Deep Space 9 (2373) • Battle of Torros III (2373) • Battle of Tyra (2374) • Operation Return (2374) • Battle of Sybaron (2374) • Second Battle of Vulcanis • First Battle of Chin'toka (2374) • Battle of Rigel (2375) • Battle of Ricktor Prime (2375) • Raid on San Francisco (2375) • Battle of Goloroth (2375) (2375) • Second Battle of Chin'toka (2375) • Kalandra Campaign (2375) • Battle of Rashanar (2375) • Battle of Cardassia (2375) • Battle of Laktar (Unknown)